300 (number)
Encyclopedia
300 is the natural number
Natural number
In mathematics, the natural numbers are the ordinary whole numbers used for counting and ordering . These purposes are related to the linguistic notions of cardinal and ordinal numbers, respectively...

 following 299 and preceding 301.

Mathematical properties

It is a triangular number
Triangular number
A triangular number or triangle number numbers the objects that can form an equilateral triangle, as in the diagram on the right. The nth triangle number is the number of dots in a triangle with n dots on a side; it is the sum of the n natural numbers from 1 to n...

 and the sum of a pair of twin prime
Twin prime
A twin prime is a prime number that differs from another prime number by two. Except for the pair , this is the smallest possible difference between two primes. Some examples of twin prime pairs are , , , , and...

s (149 + 151), as well as the sum of ten consecutive primes (13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47). It is a Harshad number
Harshad number
A Harshad number, or Niven number in a given number base, is an integer that is divisible by the sum of its digits when written in that base. Harshad numbers were defined by D. R. Kaprekar, a mathematician from India. The word "Harshad" comes from the Sanskrit + , meaning joy-giver. The Niven...

.

Other fields

Three hundred is
  • The Three Hundred, the name given to the Sparta
    Sparta
    Sparta or Lacedaemon, was a prominent city-state in ancient Greece, situated on the banks of the River Eurotas in Laconia, in south-eastern Peloponnese. It emerged as a political entity around the 10th century BC, when the invading Dorians subjugated the local, non-Dorian population. From c...

    ns who fought to the death at the Battle of Thermopylae
    Battle of Thermopylae
    The Battle of Thermopylae was fought between an alliance of Greek city-states, led by King Leonidas of Sparta, and the Persian Empire of Xerxes I over the course of three days, during the second Persian invasion of Greece. It took place simultaneously with the naval battle at Artemisium, in August...

     (although two were sent away prior to the battle and survived, Aristodemus
    Aristodemus (Spartan)
    Aristodemus was a Spartan warrior, one of the many sent to the Battle of Thermopylae. He was one of only two Spartan survivors, as he was not present at the last stand...

     and Pantites
    Pantites
    Pantites was a Spartan warrior, one of the Three Hundred sent to the Battle of Thermopylae. King Leonidas I ordered Pantites on an embassy to Thessaly, possibly to recruit allies for the coming battle. However, Pantites failed to return to Thermopylae in time for the battle, arriving after all of...

    ).
  • Movies about the Three Hundred and the battle:
    • 300 Spartans (1962)
    • 300
      300 (film)
      300 is a 2007 American fantasy action film based on the 1998 comic series of the same name by Frank Miller. It is a fictionalized retelling of the Battle of Thermopylae. The film was directed by Zack Snyder, while Miller served as executive producer and consultant...

      (2007)
  • In bowling
    Bowling
    Bowling Bowling Bowling (1375–1425; late Middle English bowle, variant of boule Bowling (1375–1425; late Middle English bowle, variant of boule...

    , a perfect score, achieved by rolling strikes in all ten frames (a total of twelve strikes).
  • The lowest possible Fair Isaac credit score.
  • In cars:
    • Several different models made and sold by Chrysler
      Chrysler
      Chrysler Group LLC is a multinational automaker headquartered in Auburn Hills, Michigan, USA. Chrysler was first organized as the Chrysler Corporation in 1925....

      :
      • The Chrysler 300 letter series
        Chrysler 300 letter series
        The Chrysler 300 "letter series" were high-performance luxury cars built in very limited numbers by the Chrysler Corporation in the U.S. from 1955-1965...

         (1955–1965)
      • The Chrysler 300 (1962–1971)
        Chrysler 300 non-letter series
        The Chrysler 300 was a full-size automobile produced by Chrysler from 1962 until 1971. It was the replacement for the 1961 Chrysler Windsor, which itself filled the place in Chrysler's line previously occupied by the Saratoga just the year before that .For 1970, taking a cue from Oldsmobile, a...

         — a completely separate model from the letter series
      • The 1970 Hurst 300 — a model with a similar concept to the letter series, though not usually considered by automotive historians to be part of that series
      • The 1979 Chrysler 300 — a limited-edition model built on the Chrysler Cordoba
        Chrysler Cordoba
        The Chrysler Cordoba was an intermediate personal luxury coupe sold by Chrysler Corporation in North America from 1975-1983. It was the company's first model produced specifically for the personal luxury market and the first Chrysler-branded vehicle that was less than full-size.-History:In the...

         platform and also with a concept similar to the letter series
      • The Chrysler 300M
        Chrysler 300M
        The Chrysler 300M is a sports sedan produced by Chrysler from 1999 to 2004. Chrysler Corporation revived the 300 name on the 300M. This time it was a front-wheel drive, V6 engined car using the Chrysler LH platform. While not technically part of the famous "letter series" of the 1950s and 1960s,...

         (1999–2004)
      • The modern Chrysler 300
        Chrysler 300
        The Chrysler 300 is a full-size upscale car first shown at the 2003 New York Auto Show as a concept car. Sales in the U.S. began in the spring of 2004 as an early 2005 model year car. Designed by Ralph Gilles, the new 300 was built as a high-end sedan while the SRT-8 model was designed to be the...

         (2005–present)
    • Nissan 300ZX
      Nissan 300ZX
      The Z31 chassis designation was first introduced in 1983 as a 1984 Nissan/Datsun 300ZX in the US only. The 300ZX, as its predecessors, was known as a Nissan in other parts of the world. This continued in the US until 1985 model year when Nissan standardized their brand name worldwide and dropped...

  • In paintball
    Paintball
    Paintball is a sport in which players compete, in teams or individually, to eliminate opponents by tagging them with capsules containing water soluble dye and gelatin shell outside propelled from a device called a paintball marker . Paintballs have a non-toxic, biodegradable, water soluble...

    , 300 ft/s is the maximum legal velocity of a shot paintball.

301

301 = 7 × 43. 301 is the sum of three consecutive primes (97 + 101 + 103), happy number
Happy number
A happy number is defined by the following process. Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 , or it loops endlessly in a cycle which does not include 1...

 in base 10, and a HTTP status code, indicating the content has been moved and the change is permanent (permanent redirect). It is also the number of a debated Turkish penal code
Article 301 (Turkish penal code)
Article 301 is a controversial article of the Turkish Penal Code making it illegal to insult Turkey, the Turkish ethnicity, or Turkish government institutions...

.

302

302 = 2 × 151. 302 is a Nontotient
Nontotient
In number theory, a nontotient is a positive integer n which is not in the range of Euler's totient function φ, that is, for which φ = n has no solution. In other words, n is a nontotient if there is no integer x that has exactly n coprimes below it. All odd numbers are nontotients, except 1,...

, and also a HTTP status code indicating the content has been moved (temporary redirect). It is also the displacement in cubic inches of Ford's "5.0" V8
Ford Windsor engine
The Windsor is a 90-degree small-block V8 engine from Ford Motor Company. It was introduced in 1962, replacing the previous Ford Y-block engine. Though not all of the engines in this family were produced at the Windsor, Ontario engine plant , the name stuck...

.

303

303 = 3 × 101. 303 is the "See Other" HTTP status code
HTTP 303
The HTTP response status code 303 See Other is the correct manner in which to redirect web applications to a new URI, particularly after an HTTP POST has been performed....

, indicating content can be found elsewhere.

304

304 = 24 × 19. 304 is the sum of six consecutive primes (41 + 43 + 47 + 53 + 59 + 61), sum of eight consecutive primes (23 + 29 + 31 + 37 + 41 + 43 + 47 + 53), primitive semiperfect number
Primitive semiperfect number
In number theory, a primitive semiperfect number is a semiperfect number that has no semiperfect proper divisor....

, untouchable number
Untouchable number
An untouchable number is a positive integer that cannot be expressed as the sum of all the proper divisors of any positive integer ....

, nontotient, and a HTTP code indicated the content has not been modified, and the record number of wickets taken in English cricket season by Tich Freeman
Tich Freeman
Alfred Percy "Tich" Freeman was an English cricketer. A leg spin bowler for Kent and England, he is the only man to take 300 wickets in an English season, and is the second most prolific wicket taker in first class cricket history.-Career:Freeman's common name comes from his extremely short...

 in 1928.

306

306 = 2 × 32 × 17. 306 is the sum of four consecutive primes (71 + 73 + 79 + 83), pronic number
Pronic number
A pronic number, oblong number, rectangular number or heteromecic number, is a number which is the product of two consecutive integers, that is, n . The n-th pronic number is twice the n-th triangular number and n more than the n-th square number...

, Harshad number, and an untouchable number

307

307 is a prime number
Prime number
A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a prime number is called a composite number. For example 5 is prime, as only 1 and 5 divide it, whereas 6 is composite, since it has the divisors 2...

, Chen prime
Chen prime
A prime number p is called a Chen prime if p + 2 is either a prime or a product of two primes. The even number 2p + 2 therefore satisfies Chen's theorem....

, and the HTTP status code for "Temporary Redirect"

308

308 = 22 × 7 × 11. 308 is a Nontotient, totient sum of the first 31 integers, Harshad number, heptagonal pyrimidal number, and the sum of two consecutive primes (151 + 157).

310

310 = 2 × 5 × 31. 310 is a sphenic number
Sphenic number
In number theory, a sphenic number is a positive integer which is the product of three distinct prime numbers.Note that this definition is more stringent than simply requiring the integer to have exactly three prime factors; e.g. 60 = 22 × 3 × 5 has exactly 3 prime factors, but is not sphenic.All...

, noncototient
Noncototient
In mathematics, a noncototient is a positive integer n that cannot be expressed as the difference between a positive integer m and the number of coprime integers below it. That is, m − φ = n, where φ stands for Euler's totient function, has no solution for m...

, and self number
Self number
A self number, Colombian number or Devlali number is an integer which, in a given base, cannot be generated by any other integer added to the sum of that other integer's digits. For example, 21 is not a self number, since it can be generated by the sum of 15 and the digits comprising 15, that is,...

.

316

316 = 22 × 79. 316 is a centered triangular number
Centered triangular number
A centered triangular number is a centered figurate number that represents a triangle with a dot in the center and all other dots surrounding the center in successive triangular layers...

 and a centered heptagonal number
Centered heptagonal number
A centered heptagonal number is a centered figurate number that represents a heptagon with a dot in the center and all other dots surrounding the center dot in successive heptagonal layers...


317

317 is a Prime number
Prime number
A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a prime number is called a composite number. For example 5 is prime, as only 1 and 5 divide it, whereas 6 is composite, since it has the divisors 2...

, Eisenstein prime
Eisenstein prime
In mathematics, an Eisenstein prime is an Eisenstein integerz = a + b\,\omega\qquadthat is irreducible in the ring-theoretic sense: its only Eisenstein divisors are the units , a + bω itself and its associates.The associates and the complex conjugate...

 with no imaginary part, Chen prime
Chen prime
A prime number p is called a Chen prime if p + 2 is either a prime or a product of two primes. The even number 2p + 2 therefore satisfies Chen's theorem....

, and a strictly non-palindromic number. 317 is also shorthand for the LM317
LM317
The LM317 is a popular variable voltage regulator. It was invented by Robert C. Dobkin and Robert J. Widlar in 1970 while they worked at National Semiconductor.-Specifications:-See also:...

 adjustable regulator chip.

318

318 = 2 × 3 × 53. It is a sphenic number
Sphenic number
In number theory, a sphenic number is a positive integer which is the product of three distinct prime numbers.Note that this definition is more stringent than simply requiring the integer to have exactly three prime factors; e.g. 60 = 22 × 3 × 5 has exactly 3 prime factors, but is not sphenic.All...

, nontotient, and the sum of twelve consecutive primes (7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47)

319

319 11 × 29. 319 is the sum of three consecutive primes (103 + 107 + 109), Smith number
Smith number
A Smith number is a composite number for which, in a given base , the sum of its digits is equal to the sum of the digits in its prime factorization. For example, 378 = 2 × 3 × 3 × 3 × 7 is a Smith number since 3 + 7 + 8 =...

, cannot be represented as the sum of fewer than 19 4th powers, happy number
Happy number
A happy number is defined by the following process. Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 , or it loops endlessly in a cycle which does not include 1...

 in base 10, and a song by Prince
Prince (musician)
Prince Rogers Nelson , often known simply as Prince, is an American singer, songwriter, musician, and actor. Prince has produced ten platinum albums and thirty Top 40 singles during his career. Prince founded his own recording studio and label; writing, self-producing and playing most, or all, of...

.

320

320 = 26 × 5 = (25) × (2 × 5). 320 is a Leyland number
Leyland number
In number theory, a Leyland number is a number of the form xy + yx, where x and y are integers greater than 1. The first few Leyland numbers are...

, a popular bitrate
Bitrate
In telecommunications and computing, bit rate is the number of bits that are conveyed or processed per unit of time....

, maximum determinant of a 10 by 10 matrix of zeros and ones, and a Harshad number.

322

322 = 2 × 7 × 23. 322 is a sphenic
Sphenic number
In number theory, a sphenic number is a positive integer which is the product of three distinct prime numbers.Note that this definition is more stringent than simply requiring the integer to have exactly three prime factors; e.g. 60 = 22 × 3 × 5 has exactly 3 prime factors, but is not sphenic.All...

, nontotient
Nontotient
In number theory, a nontotient is a positive integer n which is not in the range of Euler's totient function φ, that is, for which φ = n has no solution. In other words, n is a nontotient if there is no integer x that has exactly n coprimes below it. All odd numbers are nontotients, except 1,...

, untouchable
Untouchable number
An untouchable number is a positive integer that cannot be expressed as the sum of all the proper divisors of any positive integer ....

, hashard
Harshad number
A Harshad number, or Niven number in a given number base, is an integer that is divisible by the sum of its digits when written in that base. Harshad numbers were defined by D. R. Kaprekar, a mathematician from India. The word "Harshad" comes from the Sanskrit + , meaning joy-giver. The Niven...

 number. It is also seen as a Skull and Bones
Skull and Bones
Skull and Bones is an undergraduate senior or secret society at Yale University, New Haven, Connecticut. It is a traditional peer society to Scroll and Key and Wolf's Head, as the three senior class 'landed societies' at Yale....

 reference of power

323

323 = 17 × 19. 323 is the sum of nine consecutive primes (19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53), Motzkin number
Motzkin number
In mathematics, a Motzkin number for a given number n is the number of different ways of drawing non-intersecting chords on a circle between n points. The Motzkin numbers have very diverse applications in geometry, combinatorics and number theory...

, self number. See 323 (disambiguation)
323 (disambiguation)
323 can refer to:*323, the year 323*Mazda 323, the widely-used alternative name of the Mazda Familia motorcar.*area code 323, the North American area code*British Rail Class 323, an electric train...


324

324 = 22 × 34 = 182. 324 is the sum of four consecutive primes (73 + 79 + 83 + 89), totient sum of the first 32 integers, untouchable number, and a Harshad number.

325

325 = 52 × 13. 325 is a triangular number, hexagonal number
Hexagonal number
A hexagonal number is a figurate number. The nth hexagonal number will be the number of points in a hexagon with n regularly spaced points on a side.The formula for the nth hexagonal number...

, nonagonal number, centered nonagonal number
Centered nonagonal number
A centered nonagonal number is a centered figurate number that represents a nonagon with a dot in the center and all other dots surrounding the center dot in successive nonagonal layers...

. 325 is the smallest number to be the sum of two squares in 3 different ways: 12 + 182 , 62 + 172 and 102 + 152. 325 is also the smallest (and only known) 3-hyperperfect number
Hyperperfect number
In mathematics, a k-hyperperfect number is a natural number n for which the equality n = 1 + k holds, where σ is the divisor function . A hyperperfect number is a k-hyperperfect number for some integer k...

.

328

328 = 23 × 41. 328 is the sum of the first fifteen primes, and a refactorable number
Refactorable number
A refactorable number or tau number is an integer n that is divisible by the count of its divisors, or to put it algebraically, n is such that \tau|n. The first few refactorable numbers are listed in 1, 2, 8, 9, 12, 18, 24, 36, 40, 56, 60, 72, 80, 84, 88, 96...

.

329

329 = 7 × 47. 329 is the sum of three consecutive primes (107 + 109 + 113), and a highly cototient number
Highly cototient number
In number theory, a branch of mathematics, a highly cototient number is a positive integer k which is above one and has more solutions to the equation...

.

330

330 = 2 × 3 × 5 × 11. 330 is sum of six consecutive primes (43 + 47 + 53 + 59 + 61 + 67), pentatope number
Pentatope number
A pentatope number is a number in the fifth cell of any row of Pascal's triangle starting with the 5-term row 1 4 6 4 1 either from left to right or from right to left.The first few numbers of this kind are :...

, divisible by the number of primes below it, sparsely totient number, and a Harshad number. It is also the number of dimples on a British golf ball
Golf ball
A golf ball is a ball designed to be used in the game of golf.Under the Rules of Golf, a golf ball weighs no more than 1.620 oz , has a diameter not less than 1.680 in , and performs within specified velocity, distance, and symmetry limits...

.

331

331 is a prime number, cuban prime, sum of five consecutive primes (59 + 61 + 67 + 71 + 73), centered pentagonal number
Centered pentagonal number
A centered pentagonal number is a centered figurate number that represents a pentagon with a dot in the center and all other dots surrounding the center in successive pentagonal layers...

, centered hexagonal number
Centered hexagonal number
A centered hexagonal number, or hex number, is a centered figurate number that represents a hexagon with a dot in the center and all other dots surrounding the center dot in a hexagonal lattice....

, and Mertens function returns 0.

333

333 = 32 × 37, Mertens function returns 0, Harshad number
Harshad number
A Harshad number, or Niven number in a given number base, is an integer that is divisible by the sum of its digits when written in that base. Harshad numbers were defined by D. R. Kaprekar, a mathematician from India. The word "Harshad" comes from the Sanskrit + , meaning joy-giver. The Niven...

. Symbolically used to represent Choronzon
Choronzon
Choronzon is a demon or devil that originated in writing with the 16th century occultists Edward Kelley and John Dee within the latter's occult system of Enochian magic...

, a demon used in the philosophy of Thelema
Thelema
Thelema is a religious philosophy that was established, defined and developed by the early 20th century British writer and ceremonial magician, Aleister Crowley. He believed himself to be the prophet of a new age, the Æon of Horus, based upon a religious experience that he had in Egypt in 1904...


334

334 = 2 × 167, Nontotient, self number, long-time highest score in Test cricket
Test cricket
Test cricket is the longest form of the sport of cricket. Test matches are played between national representative teams with "Test status", as determined by the International Cricket Council , with four innings played between two teams of 11 players over a period of up to a maximum five days...

 (held by Sir Donald Bradman and Mark Taylor
Mark Taylor (cricketer)
Mark Anthony Taylor, AO is a former Australian cricket player and Test opening batsman from 1988–1999, as well as captain from 1994–1999, succeeding Allan Border...

)

336

336 = 24 × 3 × 7, Harshad number, untouchable number
Untouchable number
An untouchable number is a positive integer that cannot be expressed as the sum of all the proper divisors of any positive integer ....

, also the number of dimples on an American golf
Golf
Golf is a precision club and ball sport, in which competing players use many types of clubs to hit balls into a series of holes on a golf course using the fewest number of strokes....

 ball.

340

340 = 22 × 5 × 17, sum of eight consecutive primes (29 + 31 + 37 + 41 + 43 + 47 + 53 + 59), sum of ten consecutive primes (17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53), sum of the first four powers of 4 (41 + 42 + 43 + 44), divisible by the number of primes below it, nontotient, noncototient.

341

341 = 11 × 31, sum of seven consecutive primes (37 + 41 + 43 + 47 + 53 + 59 + 61), octagonal number, centered cube number
Centered cube number
A centered cube number is a centered figurate number that represents a cube. The centered cube number for n is given byn^3 + ^3.The first few centered cube numbers are...

, super-Poulet number.
341 = 11 × 31 is the least composite odd modulus m greater than the base b, that satisfies the Fermat property "bm−1 − 1 is divisible by m", for bases less than 100 of b = 2, 15, 60, 63 and 78. It is the smallest Fermat pseudoprime.

342

342 = 2 × 32 × 19, pronic number, Harshad number, untouchable number.

343

343 = 73, nice Friedman number
Friedman number
A Friedman number is an integer which, in a given base, is the result of an expression using all its own digits in combination with any of the four basic arithmetic operators and sometimes exponentiation. For example, 347 is a Friedman number since 347 = 73 + 4...

 since 343 = (3 + 4)3. It is z in a triplet (x,y,z) such that x5 + y2 = z3. The number of New York City Firefighters who died September 11, 2001. The number of the monitor of Installation 04 (343 Guilty Spark) in the Halo
Halo (series)
Halo is a multi-million dollar science fiction video game franchise created by Bungie and now managed by 343 Industries and owned by Microsoft Studios. The series centers on an interstellar war between humanity and a theocratic alliance of aliens known as the Covenant...

 series of games. The panel number of the Russian T-80
T-80
The T-80 is a main battle tank designed and manufactured in the former Soviet Union. A development of the T-64, it entered service in 1976 and was the first production tank to be equipped with a gas turbine engine for main propulsion.the Swedish Stridsvagn 103 of 1971 used a gas turbine alongside...

 tank driven by James Bond
James Bond
James Bond, code name 007, is a fictional character created in 1953 by writer Ian Fleming, who featured him in twelve novels and two short story collections. There have been a six other authors who wrote authorised Bond novels or novelizations after Fleming's death in 1964: Kingsley Amis,...

 in the movie GoldenEye
GoldenEye
GoldenEye is the seventeenth spy film in the James Bond series, and the first to star Pierce Brosnan as the fictional MI6 agent James Bond. The film was directed by Martin Campbell and is the first film in the series not to take story elements from the works of novelist Ian Fleming...

. The number of frames in which U.S. President John F. Kennedy
John F. Kennedy
John Fitzgerald "Jack" Kennedy , often referred to by his initials JFK, was the 35th President of the United States, serving from 1961 until his assassination in 1963....

's presidential limousine can be seen in the Zapruder film
Zapruder film
The Zapruder film is a silent, color motion picture sequence shot by private citizen Abraham Zapruder with a home-movie camera, asU.S. President John F...

. The speed of sound
Speed of sound
The speed of sound is the distance travelled during a unit of time by a sound wave propagating through an elastic medium. In dry air at , the speed of sound is . This is , or about one kilometer in three seconds or approximately one mile in five seconds....

 in dry air at 20 °C (68 °F) is 343 m/s. The band Honor Society
Honor Society (band)
Honor Society is a pop rock band originally based out of New York. The band consists of Michael Bruno , Jason Rosen , Andrew Lee , and Alexander Noyes . They were previously signed to Jonas Records in affiliation with Hollywood Records but parted ways in 2011. The band released its debut album...

's special number, the significance of which has yet to be disclosed by them.

344

344 = 23 × 43, octahedral number
Octahedral number
In number theory, an octahedral number is a figurate number that represents the number of spheres in an octahedron formed from close-packed spheres...

, noncototient, totient sum of the first 33 integers, refactorable number.

347

347 is a prime number, safe prime
Safe prime
A safe prime is a prime number of the form 2p + 1, where p is also a prime. The first few safe primes are...

, Eisenstein prime
Eisenstein prime
In mathematics, an Eisenstein prime is an Eisenstein integerz = a + b\,\omega\qquadthat is irreducible in the ring-theoretic sense: its only Eisenstein divisors are the units , a + bω itself and its associates.The associates and the complex conjugate...

 with no imaginary part, Chen prime
Chen prime
A prime number p is called a Chen prime if p + 2 is either a prime or a product of two primes. The even number 2p + 2 therefore satisfies Chen's theorem....

, Friedman number since 347 = 73 + 4, and a strictly non-palindromic number. It is the number of an area code in New York
Area code 347
Area code 347 is a New York City area code used as an overlay to 718 and 917. It is used in the boroughs of Brooklyn, Queens, the Bronx, and Staten Island, as well as the Marble Hill and Inwood sections of Manhattan. 347 is used for both landlines and mobile devices.The 347 area code became...

.

348

348 = 22 × 3 × 29, sum of four consecutive primes (79 + 83 + 89 + 97), refactorable number.

349

349, prime number, sum of three consecutive primes (109 + 113 + 127), the number of seats in the Swedish parliament.

350

350 = 2 × 52 × 7, primitive semiperfect number, divisible by the number of primes below it, nontotient.
350.org
350.org
350.org is an international environmental organization, headed by author Bill McKibben, with the goal of building a global grassroots movement to raise awareness of anthropogenic climate change, to confront climate change denial, and to cut emissions of one of the greenhouse gases, carbon dioxide,...

 is an international environmental organization.
350 is the number of cubic inches displaced in the most common form of the Small Block Chevrolet V8.

351

351 = 33 × 13, triangular number, sum of five consecutive primes (61 + 67 + 71 + 73 + 79), member of Padovan sequence
Padovan sequence
The Padovan sequence is the sequence of integers P defined by the initial valuesP=P=P=1,and the recurrence relationP=P+P.The first few values of P are...

, Harshad number. Also the 351 Windsor engine
Ford Windsor engine
The Windsor is a 90-degree small-block V8 engine from Ford Motor Company. It was introduced in 1962, replacing the previous Ford Y-block engine. Though not all of the engines in this family were produced at the Windsor, Ontario engine plant , the name stuck...

 from Ford Motor Company
Ford Motor Company
Ford Motor Company is an American multinational automaker based in Dearborn, Michigan, a suburb of Detroit. The automaker was founded by Henry Ford and incorporated on June 16, 1903. In addition to the Ford and Lincoln brands, Ford also owns a small stake in Mazda in Japan and Aston Martin in the UK...

 as well as the 351 (building)
351 (building)
351 is a 165,000-square-foot office tower currently under construction in St. John's, Newfoundland and Labrador. The building is located at 351 Water Street and will include a six level parking garage and six stories of office and retail space. It will also be the first building in the province to...

 in St. John's, Newfoundland and Labrador
St. John's, Newfoundland and Labrador
St. John's is the capital and largest city in Newfoundland and Labrador, and is the oldest English-founded city in North America. It is located on the eastern tip of the Avalon Peninsula on the island of Newfoundland. With a population of 192,326 as of July 1, 2010, the St...

.

352

352 = 25 × 11, the number of n-Queens Problem
Eight queens puzzle
The eight queens puzzle is the problem of placing eight chess queens on an 8×8 chessboard so that no two queens attack each other. Thus, a solution requires that no two queens share the same row, column, or diagonal...

 solutions for n = 9. The number of international appearances
Cap (sport)
In sports, a cap is a metaphorical term for a player's appearance on a select team, such as a national team. The term dates from the practice in the United Kingdom of awarding a cap to every player in an international match of association football...

 by Kristine Lilly
Kristine Lilly
Kristine Marie Lilly Heavey is a retired American soccer player who last played for Boston Breakers of Women's Professional Soccer and was a member of the United States women's national soccer team for 24 years...

 for the USA women's
United States women's national soccer team
The United States women's national soccer team represents the United States in international soccer competition and is controlled by U.S. Soccer. The U.S. team won the first ever Women's World Cup in 1991, and has since been a superpower in women's soccer. It is currently ranked first in the world...

 national football (soccer) team, an all-time record for the sport.

353

353
353 (number)
353 is the natural number between 352 and 354. It is a prime number.-In mathematics:353 is a palindromic prime, a cousin prime with 349, and a sexy prime with both 347 and 359. It is the first multidigit palindromic prime with all prime digits. Also, it is the smallest number whose 4th power is...

 is a prime number, Chen prime, Proth prime, Eisenstein prime with no imaginary part, palindromic prime, and Mertens function returns 0. 353 is the base of the smallest 4th power that is the sum of 4 other 4th powers, discovered by Norrie in 1911: 3534 = 304 + 1204 + 2724 + 3154.

354

354 = 2 × 3 × 59, sphenic number, nontotient, also SMTP code meaning start of mail input.

355

355 = 5 × 71, Smith number, Mertens function returns 0, divisible by the number of primes below it.
the numerator of the best simplified rational approximation of pi having a denominator of four digits or fewer. This fraction (355/113) is known as Milü.

357

357 = 3 × 7 × 17, sphenic number. Also refers to firearms or ammunition of .357 caliber, with the best-known cartridge of that size being the .357 Magnum
.357 Magnum
The .357 S&W Magnum , or simply .357 Magnum, is a revolver cartridge created by Elmer Keith, Phillip B. Sharpe, Colonel D. B. Wesson of firearms manufacturer Smith & Wesson, and Winchester. It is based upon Smith & Wesson's earlier .38 Special cartridge. The .357 Magnum cartridge was introduced in...

. The .357 SIG
.357 SIG
The .357 SIG pistol cartridge is the product of Swiss-German firearms manufacturer SIG-Sauer, in cooperation with the American ammunition manufacturer Federal Cartridge. While it is based on a .40 S&W case necked down to accept bullets, the .357 SIG brass is slightly longer...

, whose name was inspired by the performance of the .357 Magnum, is actually a 9 mm or .355 caliber.

358

358 = 2 × 179, sum of six consecutive primes (47 + 53 + 59 + 61 + 67 + 71), Mertens function returns 0.

359

359
359 (number)
Three hundred and fifty-nine is the number directly following 358 and directly preceding 360. 359 is a prime number.-359 in mathematics:359° is one degree less than a full revolution ; this makes it a reflex angle....

 is a prime number, safe prime, Eisenstein prime with no imaginary part, Chen prime, and strictly non-palindromic number.

361

361 = 192, centered triangular number, centered octagonal number
Centered octagonal number
A centered octagonal number is a centered figurate number that represents an octagon with a dot in the center and all other dots surrounding the center dot in successive octagonal layers...

, centered decagonal number
Centered decagonal number
A centered decagonal number is a centered figurate number that represents a decagon with a dot in the center and all other dots surrounding the center dot in successive decagonal layers...

, member of the Mian–Chowla sequence; also the number of positions on a standard 19 x 19 Go board.

363

363
363 (number)
363, three hundred [and] sixty three, is the integer after 362 and before 364.-In mathematics:* 363 is the sum of nine consecutive primes...

 = 3 × 112, sum of nine consecutive primes (23 + 29 + 31 + 37 + 41 + 43 + 47 + 53 + 59), Mertens function returns 0, perfect totient number.

364

364 = 22 × 7 × 13, tetrahedral number
Tetrahedral number
A tetrahedral number, or triangular pyramidal number, is a figurate number that represents a pyramid with a triangular base and three sides, called a tetrahedron...

, sum of twelve consecutive primes (11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53), Mertens function returns 0, nontotient
Nontotient
In number theory, a nontotient is a positive integer n which is not in the range of Euler's totient function φ, that is, for which φ = n has no solution. In other words, n is a nontotient if there is no integer x that has exactly n coprimes below it. All odd numbers are nontotients, except 1,...

, Harshad number.
It is a repdigit
Repdigit
In recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....

 in base 3 (111111), base 9 (444), base 25 (EE), base 27 (DD), base 51 (77) and base 90 (44).
The total number of gifts received in the song "The Twelve Days of Christmas
The Twelve Days of Christmas (song)
"The Twelve Days of Christmas" is an English Christmas carol that enumerates a series of increasingly grand gifts given on each of the twelve days of Christmas. Although first published in England in 1780, textual evidence may indicate the song is French in origin...

".

366

366 = 2 × 3 × 61, sphenic number
Sphenic number
In number theory, a sphenic number is a positive integer which is the product of three distinct prime numbers.Note that this definition is more stringent than simply requiring the integer to have exactly three prime factors; e.g. 60 = 22 × 3 × 5 has exactly 3 prime factors, but is not sphenic.All...

, Mertens function returns 0, noncototient. Also, the number of days in a leap year
Leap year
A leap year is a year containing one extra day in order to keep the calendar year synchronized with the astronomical or seasonal year...

; it is 26-gonal and 123-gonal.

367

367 is a prime number, self number
Self number
A self number, Colombian number or Devlali number is an integer which, in a given base, cannot be generated by any other integer added to the sum of that other integer's digits. For example, 21 is not a self number, since it can be generated by the sum of 15 and the digits comprising 15, that is,...

, happy number
Happy number
A happy number is defined by the following process. Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 , or it loops endlessly in a cycle which does not include 1...

, and a strictly non-palindromic number.

369

369 is the magic constant
Magic constant
The magic constant or magic sum of a magic square is the sum of numbers in any row, column, and diagonal of the magic square. For example, the magic square shown below has a magic constant of 15....

 of the 9 × 9 normal magic square
Magic square
In recreational mathematics, a magic square of order n is an arrangement of n2 numbers, usually distinct integers, in a square, such that the n numbers in all rows, all columns, and both diagonals sum to the same constant. A normal magic square contains the integers from 1 to n2...

 and n-queens problem
Eight queens puzzle
The eight queens puzzle is the problem of placing eight chess queens on an 8×8 chessboard so that no two queens attack each other. Thus, a solution requires that no two queens share the same row, column, or diagonal...

 for n = 9; there are 369 free polyomino
Polyomino
A polyomino is a plane geometric figure formed by joining one or more equal squares edge to edge. It is a polyform whose cells are squares. It may be regarded as a finite subset of the regular square tiling with a connected interior....

es of order 8. With 370, a Ruth–Aaron pair with only distinct prime factors counted.

370

370 = Base 10 Armstrong number since 33 + 73 + 03 = 370, 2 × 5 × 37, sphenic number, sum of four consecutive primes (83 + 89 + 97 + 101), Nontotient, with 369 part of a Ruth–Aaron pair with only distinct prime factors counted, Harshad number, System/370
System/370
The IBM System/370 was a model range of IBM mainframes announced on June 30, 1970 as the successors to the System/360 family. The series maintained backward compatibility with the S/360, allowing an easy migration path for customers; this, plus improved performance, were the dominant themes of the...

 is a computing architecture from IBM
IBM
International Business Machines Corporation or IBM is an American multinational technology and consulting corporation headquartered in Armonk, New York, United States. IBM manufactures and sells computer hardware and software, and it offers infrastructure, hosting and consulting services in areas...

, 370 spells "OLE" when entered on a calculator turned upside-down.

371

371 = 7 × 53, Armstrong number since 33 + 73 + 13 = 371, sum of three consecutive primes (113 + 127 + 131), sum of seven consecutive primes (41 + 43 + 47 + 53 + 59 + 61 + 67), sum of the primes from its least to its greatest prime factor , the next such composite number is 2935561623745.

372

372 = 22 × 3 × 31, sum of eight consecutive primes (31 + 37 + 41 + 43 + 47 + 53 + 59 + 61), Harshad number, noncototient, untouchable number, refactorable number.

373

373, prime number, balanced prime, sum of five consecutive primes (67 + 71 + 73 + 79 + 83), permutable prime with 337 and 733, palindromic prime, two-sided primes
Truncatable prime
In number theory, a left-truncatable prime is a prime number which, in a given base, contains no 0, and if the leading digit is successively removed, then all resulting numbers are prime. For example 9137, since 9137, 137, 37 and 7 are all prime...

.

376

376 = 23 × 47, 1-automorphic number
Automorphic number
In mathematics an automorphic number is a number whose square "ends" in the same digits as number itself. For example, 52 = 25, 762 = 5776, and 8906252 = 793212890625, so 5, 76 and 890625 are all automorphic numbers.The sequence of automorphic numbers begins 1, 5, 6, 25, 76, 376, 625, 9376, .....

, nontotient, refactorable number.

378

378 = 2 × 33 × 7, triangular number, hexagonal number, Smith number, Harshad number, self number.

381

381 = 3 × 127, sum of the first sixteen primes. Palindrome in base 2 and base 8.
Represents the term "I Love You", (3) words, (8) letters, (1) meaning.

382

382 = 2 × 191, sum of ten consecutive primes (19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53 + 59), Smith number.

383

383, prime number, safe prime, Woodall prime, Thabit number
Thabit number
In number theory, a Thabit number, Thâbit ibn Kurrah number, or 321 number is an integer of the form 3·2n−1 for a non-negative integer n...

, Eisenstein prime with no imaginary part, palindromic prime. 383 is the cubic displacement in inches of a 350cid Small Block Chevrolet with a 400cid SBC crankshaft, giving it more stroke.

386

386 = 2 × 193, Nontotient, noncototient, nonagonal number, centered heptagonal number, also shorthand for the Intel 80386
Intel 80386
The Intel 80386, also known as the i386, or just 386, was a 32-bit microprocessor introduced by Intel in 1985. The first versions had 275,000 transistors and were used as the central processing unit of many workstations and high-end personal computers of the time...

 microprocessor chip. 386 generation refers to South Koreans, especially politicians, born in the '60s (:ko:386 세대). Number of Pokémon in 3rd Generation National Pokédex.

387

387 = 32 × 43, also shorthand for the Intel 80387, math coprocessor chip to the 386.

389

389, prime number, Eisenstein prime with no imaginary part, Chen prime, highly cototient number, self number, strictly non-palindromic number. Also, 389 equals the displacement in cubic inches of the famous Pontiac GTO V-8 engine of 1964-1966. Smallest conductor of a rank 2 Elliptic curve
Elliptic curve
In mathematics, an elliptic curve is a smooth, projective algebraic curve of genus one, on which there is a specified point O. An elliptic curve is in fact an abelian variety — that is, it has a multiplication defined algebraically with respect to which it is a group — and O serves as the identity...

. The port number for LDAP, and the name for the Fedora Directory Server
Fedora Directory Server
The 389 Directory Server is an LDAP server developed by Red Hat, as part of Red Hat's community-supported Fedora Project. 389 Directory Server is identical to the Red Hat Directory Server, just rebranded...

 project.

390

390 = 2 × 3 × 5 × 13, sum of four consecutive primes (89 + 97 + 101 + 103), nontotient, System/390 is a computing architecture from IBM
IBM
International Business Machines Corporation or IBM is an American multinational technology and consulting corporation headquartered in Armonk, New York, United States. IBM manufactures and sells computer hardware and software, and it offers infrastructure, hosting and consulting services in areas...

.

395

395 = 5 × 79, sum of three consecutive primes (127 + 131 + 137), sum of five consecutive primes (71 + 73 + 79 + 83 + 89).

396

396 = 22 × 32 × 11, sum of a twin prime (197 + 199), totient sum of the first 36 integers, refactorable number, Harshad number. 396 also referers to the displacement in cubic inches of early Chevrolet Big Blocks.

399

399 = 3 × 7 × 19, sphenic number, smallest Lucas–Carmichael number, Harshad number.
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