100000000 (number)
Encyclopedia
One hundred million is the natural number
following 99999999 and preceding 100000001.
In scientific notation
, it is written as 10^{8}.
East Asian languages treat 100,000,000 as a counting unit, significant as the square of a myriad
, also a counting unit. In Chinese, Japanese, and Korean respectively it is yì (億) (or wànwàn [萬萬] in ancient texts), oku (億), and eok (억/億). These languages do not have single words for a thousand to the second, third, fifth power, etc.)
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 99999999 and preceding 100000001.
List of numbers – Integers 10000000 10000000 (number) Ten million is the natural number following 9999999 and preceding 10000001.In scientific notation, it is written as 107.In South Asia, it is known as the Crore. Selected 8digit numbers :*10077696 = 69... 100000000 1000000000 1000000000 (number) 1,000,000,000 is the natural number following 999,999,999 and preceding 1,000,000,001.In scientific notation, it is written as 109.... 


Cardinal Cardinal number In mathematics, cardinal numbers, or cardinals for short, are a generalization of the natural numbers used to measure the cardinality of sets. The cardinality of a finite set is a natural number – the number of elements in the set. The transfinite cardinal numbers describe the sizes of infinite... 
One hundred million 
Ordinal Ordinal number In set theory, an ordinal number, or just ordinal, is the order type of a wellordered set. They are usually identified with hereditarily transitive sets. Ordinals are an extension of the natural numbers different from integers and from cardinals... 
One hundred millionth 
Factorization Factorization In mathematics, factorization or factoring is the decomposition of an object into a product of other objects, or factors, which when multiplied together give the original... 
2^{8} · 5^{8} 
Binary Binary numeral system The binary numeral system, or base2 number system, represents numeric values using two symbols, 0 and 1. More specifically, the usual base2 system is a positional notation with a radix of 2... 
101111101011110000100000000 
Hexadecimal Hexadecimal In mathematics and computer science, hexadecimal is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F to represent values ten to fifteen... 
5F5E100 
In scientific notation
Scientific notation
Scientific notation is a way of writing numbers that are too large or too small to be conveniently written in standard decimal notation. Scientific notation has a number of useful properties and is commonly used in calculators and by scientists, mathematicians, doctors, and engineers.In scientific...
, it is written as 10^{8}.
East Asian languages treat 100,000,000 as a counting unit, significant as the square of a myriad
Myriad
Myriad , "numberlesscountless, infinite", is a classical Greek word for the number 10,000. In modern English, the word refers to an unspecified large quantity.History and usage:...
, also a counting unit. In Chinese, Japanese, and Korean respectively it is yì (億) (or wànwàn [萬萬] in ancient texts), oku (億), and eok (억/億). These languages do not have single words for a thousand to the second, third, fifth power, etc.)
Selected 9digit numbers (100000001–999999999)
 102334155 – Fibonacci numberFibonacci numberIn mathematics, the Fibonacci numbers are the numbers in the following integer sequence:0,\;1,\;1,\;2,\;3,\;5,\;8,\;13,\;21,\;34,\;55,\;89,\;144,\; \ldots\; ....
 107890609 – WedderburnEtherington numberWedderburnEtherington numberIn graph theory, the Wedderburn–Etherington numbers, named for Ivor Malcolm Haddon Etherington and Joseph Wedderburn, count how many weak binary trees can be constructed: that is, the number of trees for which each graph vertex is adjacent to no more than three other such vertices, for a...
 111111111 – repunitRepunitIn recreational mathematics, a repunit is a number like 11, 111, or 1111 that contains only the digit 1. The term stands for repeated unit and was coined in 1966 by Albert H. Beiler...
, square root of 12345678987654321  111111113 – Chen primeChen primeA 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....
, Sophie Germain primeSophie Germain primeIn number theory, a prime number p is a Sophie Germain prime if 2p + 1 is also prime. For example, 23 is a Sophie Germain prime because it is a prime and 2 × 23 + 1 = 47, and 47 is also a prime number...
, cousin primeCousin primeIn mathematics, cousin primes are prime numbers that differ by four; compare this with twin primes, pairs of prime numbers that differ by two, and sexy primes, pairs of prime numbers that differ by six....
.  123456789 – smallest zeroless base 10 pandigital numberPandigital numberIn mathematics, a pandigital number is an integer that in a given base has among its significant digits each digit used in the base at least once. For example, 1223334444555567890 is a pandigital number in base 10...
 129140163 = 3^{17}
 129644790 – Catalan numberCatalan numberIn combinatorial mathematics, the Catalan numbers form a sequence of natural numbers that occur in various counting problems, often involvingrecursively defined objects...
 134217728 = 2^{27}
 139854276 – the smallest pandigital square
 142547559 – Motzkin numberMotzkin numberIn mathematics, a Motzkin number for a given number n is the number of different ways of drawing nonintersecting chords on a circle between n points. The Motzkin numbers have very diverse applications in geometry, combinatorics and number theory...
 165580141 – Fibonacci numberFibonacci numberIn mathematics, the Fibonacci numbers are the numbers in the following integer sequence:0,\;1,\;1,\;2,\;3,\;5,\;8,\;13,\;21,\;34,\;55,\;89,\;144,\; \ldots\; ....
 179424673 – 10000000th prime numberPrime numberA 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...
 190899322 – Bell numberBell numberIn combinatorics, the nth Bell number, named after Eric Temple Bell, is the number of partitions of a set with n members, or equivalently, the number of equivalence relations on it...
 214358881 = 11^{8}
 222222222 – repdigitRepdigitIn recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....
 222222227 – safe primeSafe primeA safe prime is a prime number of the form 2p + 1, where p is also a prime. The first few safe primes are...
 225058681 – Pell numberPell numberIn 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...
 225331713 – selfdescriptive numberSelfdescriptive numberA selfdescriptive number is an integer m that in a given base b is bdigits long in which each digit d at position n counts how many instances of digit n are in m.For example, in base 10, the number 6210001000 is selfdescriptive because of the following...
in base 9  244140625 = 5^{11}
 253450711 – WedderburnEtherington number
 267914296 – Fibonacci numberFibonacci numberIn mathematics, the Fibonacci numbers are the numbers in the following integer sequence:0,\;1,\;1,\;2,\;3,\;5,\;8,\;13,\;21,\;34,\;55,\;89,\;144,\; \ldots\; ....
 268402687 – Carol number
 268435456 = 2^{28}
 268468223 – Kynea number
 272400600 – the number of terms of the harmonic seriesHarmonic series (mathematics)In mathematics, the harmonic series is the divergent infinite series:Its name derives from the concept of overtones, or harmonics in music: the wavelengths of the overtones of a vibrating string are 1/2, 1/3, 1/4, etc., of the string's fundamental wavelength...
required to pass 20  275305224 – the number of magic squareMagic squareIn 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...
s of order 5, excluding rotations and reflections  282475249 = 7^{10}
 333333333 – repdigit
 367567200 – colossally abundant numberColossally abundant numberIn mathematics, a colossally abundant number is a natural number that, in some rigorous sense, has a lot of divisors...
 381654729 – the only polydivisible numberPolydivisible numberIn mathematics a polydivisible number is a number with digits abcde... that has the following properties :# Its first digit a is not 0.# The number formed by its first two digits ab is a multiple of 2....
that is also a zeroless pandigital numberPandigital numberIn mathematics, a pandigital number is an integer that in a given base has among its significant digits each digit used in the base at least once. For example, 1223334444555567890 is a pandigital number in base 10...  387420489 = 3^{18}, 9^{9} and in tetrationTetrationIn mathematics, tetration is an iterated exponential and is the next hyper operator after exponentiation. The word tetration was coined by English mathematician Reuben Louis Goodstein from tetra and iteration. Tetration is used for the notation of very large numbers...
notation  400763223 – Motzkin number
 433494437 – Fibonacci numberFibonacci numberIn mathematics, the Fibonacci numbers are the numbers in the following integer sequence:0,\;1,\;1,\;2,\;3,\;5,\;8,\;13,\;21,\;34,\;55,\;89,\;144,\; \ldots\; ....
 442386619 – alternating factorialAlternating factorialIn mathematics, an alternating factorial is the absolute value of the alternating sum of the first n factorials.This is the same as their sum, with the oddindexed factorials multiplied by −1 if n is even, and the evenindexed factorials multiplied by −1 if n is odd, resulting in an...
 444444444 – repdigitRepdigitIn recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....
 477638700 – Catalan number
 479001599 – factorial primeFactorial primeA factorial prime is a prime number that is one less or one more than a factorial . The first few factorial primes are:n! − 1 is prime for :n! + 1 is prime for :...
 479001600 = 12!
 536870912 = 2^{29}
 543339720 – Pell number
 554999445 – 9digit analogue to Kaprekar constant
 555555555 – repdigitRepdigitIn recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....
 596572387 – WedderburnEtherington number
 666666666 – repdigitRepdigitIn recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....
 701408733 – Fibonacci numberFibonacci numberIn mathematics, the Fibonacci numbers are the numbers in the following integer sequence:0,\;1,\;1,\;2,\;3,\;5,\;8,\;13,\;21,\;34,\;55,\;89,\;144,\; \ldots\; ....
 715827883 – Wagstaff prime
 777777777 – repdigitRepdigitIn recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....
 815730721 = 13^{8}
 888888888 – repdigitRepdigitIn recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....
 906150257 – smallest counterexample to the Polya conjecturePólya conjectureIn number theory, the Pólya conjecture stated that 'most' of the natural numbers less than any given number have an odd number of prime factors. The conjecture was posited by the Hungarian mathematician George Pólya in 1919, and proved false in 1958...
 987654321 – largest zeroless pandigital number
 999999937 – largest 9digit prime
 999999999 – repdigitRepdigitIn recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....