100,000,000

"100 million" redirects here. For the song by Birdman, see 100 Million.

100000000
List of numbers Integers ← 100 101 102 103 104 105 106 107 108 109
Cardinal	One hundred million
Ordinal	100000000th (one hundred millionth)
Factorization	28 × 58
Greek numeral	${\stackrel {\alpha }{\mathrm {M} }}$
Roman numeral	C
Binary	1011111010111100001000000002
Ternary	202220111120122013
Senary	135312025446
Octal	5753604008
Duodecimal	295A645412
Hexadecimal	5F5E10016

100,000,000 (one hundred million) is the natural number following 99,999,999 and preceding 100,000,001.

In scientific notation, it is written as 10⁸.

East Asian languages treat 100,000,000 as a counting unit, significant as the square of a myriad, also a counting unit. In Chinese, Korean, and Japanese respectively it is (simplified Chinese: 亿; traditional Chinese: 億; pinyin: yì) (or Chinese: 萬萬; pinyin: wànwàn in ancient texts), eok (억/億) and oku (億). These languages do not have single words for a thousand to the second, third, fifth power, etc.

Selected 9-digit numbers (100,000,001–999,999,999)

100,000,001 to 199,999,999

• 100,000,007 – smallest nine digit prime
• 100,005,153 – smallest triangular number with 9 digits and the 14,142nd triangular number
• 102,334,155 – Fibonacci number
• 105,413,504 – 14⁷
• 107,890,609 – Wedderburn-Etherington number
• 111,111,111 – repunit, square root of 12345678987654321
• 111,111,113 – Chen prime, Sophie Germain prime, cousin prime.
• 123,456,789 – smallest zeroless base 10 pandigital number
• 129,140,163 – 3¹⁷
• 129,644,790 – Catalan number
• 134,217,728 – 2²⁷
• 139,854,276 – the smallest pandigital square
• 142,547,559 – Motzkin number
• 165,580,141 – Fibonacci number
• 167,444,795 – cyclic number in base 6
• 170,859,375 – 15⁷
• 179,424,673 – 10,000,000th prime number
• 190,899,322 – Bell number

200,000,000 to 299,999,999

• 212,890,625 – 1-automorphic number
• 214,358,881 – 11⁸
• 222,222,222 – repdigit
• 222,222,227 – safe prime
• 223,092,870 – the product of the first nine prime numbers
• 225,058,681 – Pell number
• 225,331,713 – self-descriptive number in base 9
• 232,792,560 – superior highly composite number; colossally abundant number; the smallest number divisible by all the numbers 1 through 22
• 244,140,625 – 5¹²
• 253,450,711 – Wedderburn-Etherington number
• 267,914,296 – Fibonacci number
• 268,402,687 – Carol number
• 268,435,456 – 2²⁸
• 268,468,223 – Kynea number
• 272,400,600 – the number of terms of the harmonic series required to pass 20
• 275,305,224 – the number of magic squares of order 5, excluding rotations and reflections
• 282,475,249 – 7¹⁰

300,000,000 to 399,999,999

• 333,333,333 – repdigit
• 367,567,200 – colossally abundant number, superior highly composite number
• 381,654,729 – the only polydivisible number that is also a zeroless pandigital number
• 387,420,489 – 3¹⁸, 9⁹ and in tetration notation ²9

400,000,000 to 499,999,999

• 400,763,223 – Motzkin number
• 410,338,673 – 17⁷
• 429,981,696 – 12⁸
• 433,494,437 – Fibonacci prime
• 442,386,619 – alternating factorial
• 444,444,444 – repdigit
• 477,638,700 – Catalan number
• 479,001,599 – factorial prime
• 479,001,600 – 12!

500,000,000 to 599,999,999

• 536,870,912 – 2²⁹
• 543,339,720 – Pell number
• 554,999,445 – a Kaprekar constant for digit length 9 in base 10
• 555,555,555 – repdigit
• 596,572,387 – Wedderburn-Etherington number

600,000,000 to 699,999,999

• 612,220,032 – 18⁷
• 666,666,666 – repdigit
• 644,972,544 – perfect cube, 3-smooth number

700,000,000 to 799,999,999

• 701,408,733 – Fibonacci number
• 715,827,883 – Wagstaff prime
• 777,777,777 – repdigit
• 787,109,376– 1-automorphic number

800,000,000 to 899,999,999

• 815,730,721 – 13⁸
• 888,888,888 – repdigit
• 893,871,739 – 19⁷

900,000,000 to 999,999,999

• 906,150,257 – smallest counterexample to the Polya conjecture
• 987,654,321 – largest zeroless pandigital number
• 999,961,560 – highest triangular number with 9 digits and the 44,720th triangular number
• 999,999,937 – largest 9-digit prime
• 999,999,999 – repdigit