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82 (number)
Encyclopedia
82 is the natural number
following 81
and preceding 83
.
,40
,50
,43
,1,0
)) 82 being the eighth composite number
in the 43-aliquot tree.
Eighty-two is a companion Pell number
.
Eighty-two is a happy 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 81
81 (number)
81 is the natural number following 80 and preceding 82.-In mathematics:Eighty-one is the square of 9 and the fourth power of 3. Like all powers of three, 81 is a perfect totient number. It is a heptagonal number and a centered octagonal number. It is also a tribonacci number, and an open meandric...
and preceding 83
83 (number)
83 is the natural number following 82 and preceding 84.-In mathematics:Eighty-three is the sum of three consecutive primes as well as the sum of five consecutive primes ....
.
In mathematics
Eighty-two is the twenty-third biprime and the twelfth of the form (2.q). The aliquot sum of 82 is 44 within the aliquot sequence (82,4444 (number)
44 is the natural number following 43 and preceding 45.- In mathematics :Forty-four is a tribonacci number, a happy number, an octahedral number and a palindromic number....
,40
40 (number)
40 is the natural number following 39 and preceding 41.Despite being related to the word "four" , 40 is spelled "forty", and not "fourty"...
,50
50 (number)
This article discusses the number fifty. For the year 50 CE, see 50. For other uses of 50, see 50 50 is the natural number following 49 and preceding 51.-In mathematics:...
,43
43 (number)
43 is the natural number following 42 and preceding 44.- In mathematics :Forty-three is the 14th smallest prime number. The previous is forty-one, with which it comprises a twin prime, and the next is forty-seven. 43 is the smallest prime that is not a Chen prime...
,1,0
0 (number)
0 is both a numberand the numerical digit used to represent that number in numerals.It fulfills a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, 0 is used as a placeholder in place value systems...
)) 82 being the eighth composite number
Composite number
A composite number is a positive integer which has a positive divisor other than one or itself. In other words a composite number is any positive integer greater than one that is not a prime number....
in the 43-aliquot tree.
Eighty-two is a companion Pell number
Pell number
In mathematics, the Pell numbers are an infinite sequence of integers that have been known since ancient times, the denominators of the closest rational approximations to the square root of 2. This sequence of approximations begins 1/1, 3/2, 7/5, 17/12, and 41/29, so the sequence of Pell numbers...
.
Eighty-two is a 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 astronomy
- Messier 82Messier 82Messier 82 is the prototype nearby starburst galaxy about 12 million light-years away in the constellation Ursa Major...
, a starburst galaxyStarburst galaxyA starburst galaxy is a galaxy in the process of an exceptionally high rate of star formation, compared to the usual star formation rate seen in most galaxies. Galaxies are often observed to have a burst of star formation after a collision or close encounter between two galaxies...
in the constellationConstellationIn modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
Ursa MajorUrsa MajorUrsa Major , also known as the Great Bear, is a constellation visible throughout the year in most of the northern hemisphere. It can best be seen in April... - The New General CatalogueNew General CatalogueThe New General Catalogue of Nebulae and Clusters of Stars is a well-known catalogue of deep sky objects in astronomy. It contains 7,840 objects, known as the NGC objects...
object NGC 82, a single star in the constellation AndromedaAndromeda (constellation)Andromeda is a constellation in the northern sky. It is named after Andromeda, the princess in the Greek legend of Perseus who was chained to a rock to be eaten by the sea monster Cetus... - The Saros number of the solar eclipseSolar eclipseAs seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and the Earth, and the Moon fully or partially blocks the Sun as viewed from a location on Earth. This can happen only during a new moon, when the Sun and the Moon are in conjunction as seen from Earth. At least...
series which began on -293 April 22 and ended on 969 May. The duration of Saros series 82 was 1262.1 years, and it contained 71 solar eclipses. The Saros number of the lunar eclipseLunar eclipseA lunar eclipse occurs when the Moon passes behind the Earth so that the Earth blocks the Sun's rays from striking the Moon. This can occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, a lunar eclipse can only occur the night of a...
series which began on -226 September 10 and ended on 1289 March. The duration of Saros series 82 was 1514.5 years, and it contained 85 lunar milo davis.
In other fields
Eighty-two is also:- The atomic numberAtomic numberIn chemistry and physics, the atomic number is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element...
of leadLeadLead is a main-group element in the carbon group with the symbol Pb and atomic number 82. Lead is a soft, malleable poor metal. It is also counted as one of the heavy metals. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed...
. - In physics, the sixth Magic NumberMagic number (physics)In nuclear physics, a magic number is a number of nucleons such that they are arranged into complete shells within the atomic nucleus...
. - The model number of: Mark 82 bombMark 82 bombThe Mark 82 is an unguided, low-drag general-purpose bomb, part of the U.S. Mark 80 series. The explosive filling is tritonal.-Development and deployment:...
, a nonguided general purpose bomb. - The number of the French department Tarn-et-GaronneTarn-et-GaronneTarn-et-Garonne is a French department in the southwest of France. It is traversed by the Rivers Tarn and Garonne, from which it takes its name.-History:...
.
- The code for international direct dial phone calls to South KoreaSouth KoreaThe Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...
. - The ISBN Group Identifier for books published in NorwayNorwayNorway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...
. - Title of Dennis Smith's book about firefighters: Report from Engine Co. 82.
- The year AD 82, 82 BC82 BCYear 82 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Marius and Carbo...
, or 1982. - The sophomore studio album of Kenyan house trio Just A BandJust A BandJust a Band is a Kenyan house/funk/disco band whose career was launched with their debut album, Scratch To Reveal, in 2008. Their music has explored various musical directions such as, but not limited to jazz, hip-hop, disco and electronica....
. - The number of Trip Murphy's (Matt DillonMatt DillonMatthew Raymond "Matt" Dillon is an American actor and film director. He began acting in the late 1970s, gaining fame as a teenage idol during the 1980s.- Early life :...
) car in Herbie Fully Loaded (2005). - The number (*82) to unblock your caller ID for phones that block anonymous incoming calls.
- The very significant number that appears at the end of Kurt VonnegutKurt VonnegutKurt Vonnegut, Jr. was a 20th century American writer. His works such as Cat's Cradle , Slaughterhouse-Five and Breakfast of Champions blend satire, gallows humor and science fiction. He was known for his humanist beliefs and was honorary president of the American Humanist Association.-Early...
's book "Hocus PocusHocus Pocus (novel)Hocus Pocus is a 1990 novel by Kurt Vonnegut which deals with themes of class, race, crime, suicide, and globalization.-Introduction:Like many of Vonnegut's novels, Hocus Pocus is not organized in a traditional linear fashion, and has a plot centered around a major event which is alluded to early,...
".
In sports
- Both the NBANational Basketball AssociationThe National Basketball Association is the pre-eminent men's professional basketball league in North America. It consists of thirty franchised member clubs, of which twenty-nine are located in the United States and one in Canada...
and NHLNational Hockey LeagueThe National Hockey League is an unincorporated not-for-profit association which operates a major professional ice hockey league of 30 franchised member clubs, of which 7 are currently located in Canada and 23 in the United States...
operate 82-game regular seasons.