100,000,000

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 yi (or in ancient texts), eok and oku. These languages do not have single words for a thousand to the second, third, fifth powers, etc.
100,000,000 is also the fourth power of 100 and also the square of 10000.
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
100,020,001 = 100012, palindromic square
100,544,625 = 4653, the smallest 9-digit cube
102,030,201 = 101012, palindromic square
102,334,155 = Fibonacci number
102,400,000 = 405
104,060,401 = 102012 = 1014, palindromic square
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.
113,379,904 = 106482 = 4843 = 226
115,856,201 = 415
119,481,296 = logarithmic number
120,528,657 = number of centered hydrocarbons with 27 carbon atoms
121,242,121 = 110112, palindromic square
123,454,321 = 111112, palindromic square
123,456,789 = smallest zeroless base 10 pandigital number
125,686,521 = 112112, palindromic square
126,390,032 = number of 34-bead necklaces (turning over is allowed) where complements are equivalent
126,491,971 = Leonardo prime
129,140,163 = 317
129,145,076 = Leyland number
129,644,790 = Catalan number
130,150,588 = number of 33-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed
130,691,232 = 425
134,217,728 = 5123 = 89 = 227
134,218,457 = Leyland number
136,048,896 = 116642 = 1084
139,854,276 = 118262, the smallest zeroless base 10 pandigital square
142,547,559 = Motzkin number
147,008,443 = 435
148,035,889 = 121672 = 5293 = 236
157,115,917 – number of parallelogram polyominoes with 24 cells.
157,351,936 = 125442 = 1124
164,916,224 = 445
165,580,141 = Fibonacci number
167,444,795 = cyclic number in base 6
170,859,375 = 157
171,794,492 = number of reduced trees with 36 nodes
177,264,449 = Leyland number
179,424,673 = 10,000,000th prime number
184,528,125 = 455
188,378,402 = number of ways to partition {1,2,...,11} and then partition each cell (block) into subcells.
190,899,322 = Bell number
191,102,976 = 138242 = 5763 = 246
192,622,052 = number of free 18-ominoes
199,960,004 = number of surface-points of a tetrahedron with edge-length 9999
200,000,000 to 299,999,999
200,000,002 = number of surface-points of a tetrahedron with edge-length 10000
205,962,976 = 465
210,295,326 = Fine number
211,016,256 = number of primitive polynomials of degree 33 over GF(2)
212,890,625 = 1-automorphic number
214,358,881 = 146412 = 1214 = 118
222,222,222 = repdigit
222,222,227 = safe prime
223,092,870 = the product of the first nine prime numbers, thus the ninth primorial
225,058,681 = Pell number
225,331,713 = self-descriptive number in base 9
229,345,007 = 475
232,792,560 = superior highly composite number; colossally abundant number; the smallest number divisible by all the numbers 1 through 22
244,140,625 = 156252 = 1253 = 256 = 512
244,389,457 = Leyland number
244,330,711 = n such that n | (3n + 5)
245,492,244 = number of 35-bead necklaces (turning over is allowed) where complements are equivalent
252,648,992 = number of 34-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed
253,450,711 = Wedderburn-Etherington prime
254,803,968 = 485
267,914,296 = Fibonacci number
268,435,456 = 163842 = 1284 = 167 = 414 = 228
268,436,240 = Leyland number
268,473,872 = Leyland 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 = 168072 = 495 = 710
292,475,249 = Leyland number
300,000,000 to 399,999,999
308,915,776 = 175762 = 6763 = 266
309,576,725 = number of centered hydrocarbons with 28 carbon atoms
312,500,000 = 505
321,534,781 = Markov prime
331,160,281 = Leonardo prime
333,333,333 = repdigit
336,849,900 = number of primitive polynomials of degree 34 over GF(2)
345,025,251 = 515
350,238,175 = number of reduced trees with 37 nodes
362,802,072 – number of parallelogram polyominoes with 25 cells
364,568,617 = Leyland number
365,496,202 = n such that n | (3n + 5)
367,567,200 = colossally abundant number, superior highly composite number
380,204,032 = 525
381,654,729 = the only polydivisible number that is also a zeroless pandigital number
387,420,489 = 196832 = 7293 = 276 = 99 = 318 and in tetration notation 29
387,426,321 = Leyland number
400,000,000 to 499,999,999
400,080,004 = 200022, palindromic square
400,763,223 = Motzkin number
404,090,404 = 201022, palindromic square
405,071,317 = 11 + 22 + 33 + 44 + 55 + 66 + 77 + 88 + 99
410,338,673 = 177
418,195,493 = 535
429,981,696 = 207362 = 1444 = 128 = 100,000,00012 AKA a gross-great-great-gross (10012 great-great-grosses)
433,494,437 = Fibonacci prime, Markov prime
442,386,619 = alternating factorial
444,101,658 = number of (unordered, unlabeled) rooted trimmed trees with 27 nodes
444,444,444 = repdigit
455,052,511 = number of primes under 1010
459,165,024 = 545
467,871,369 = number of triangle-free graphs on 14 vertices
477,353,376 = number of 36-bead necklaces (turning over is allowed) where complements are equivalent
477,638,700 = Catalan number
479,001,599 = factorial prime
479,001,600 = 12!
481,890,304 = 219522 = 7843 = 286
490,853,416 = number of 35-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed
499,999,751 = Sophie Germain prime
500,000,000 to 599,999,999
503,284,375 = 555
522,808,225 = 228652, palindromic square
535,828,591 = Leonardo prime
536,870,911 = third composite Mersenne number with a prime exponent
536,870,912 = 229
536,871,753 = Leyland number
542,474,231 = k such that the sum of the squares of the first k primes is divisible by k.
543,339,720 = Pell number
550,731,776 = 565
554,999,445 = a Kaprekar constant for digit length 9 in base 10
555,555,555 = repdigit
574,304,985 = 19 + 29 + 39 + 49 + 59 + 69 + 79 + 89 + 99
575,023,344 = 14-th derivative of xx at x=1
594,823,321 = 243892 = 8413 = 296
596,572,387 = Wedderburn-Etherington prime
600,000,000 to 699,999,999
601,692,057 = 575
612,220,032 = 187
617,323,716 = 248462, palindromic square
635,318,657 = the smallest number that is the sum of two fourth powers in two different ways, of which Euler was aware.
644,972,544 = 8643, 3-smooth number
656,356,768 = 585
666,666,666 = repdigit
670,617,279 = highest stopping time integer under 109 for the Collatz conjecture
700,000,000 to 799,999,999
701,408,733 = Fibonacci number
714,924,299 = 595
715,497,037 = number of reduced trees with 38 nodes
715,827,883 = Wagstaff prime, Jacobsthal prime
725,594,112 = number of primitive polynomials of degree 36 over GF(2)
729,000,000 = 270002 = 9003 = 306
742,624,232 = number of free 19-ominoes
774,840,978 = Leyland number
777,600,000 = 605
777,777,777 = repdigit
778,483,932 = Fine number
780,291,637 = Markov prime
787,109,376 = 1-automorphic number
797,790,928 = number of centered hydrocarbons with 29 carbon atoms
800,000,000 to 899,999,999
815,730,721 = 138
815,730,721 = 1694
835,210,000 = 1704
837,759,792 – number of parallelogram polyominoes with 26 cells.
844,596,301 = 615
855,036,081 = 1714
875,213,056 = 1724
887,503,681 = 316
888,888,888 – repdigit
893,554,688 = 2-automorphic number
893,871,739 = 197
895,745,041 = 1734
900,000,000 to 999,999,999
906,150,257 = smallest counterexample to the Polya conjecture
916,132,832 = 625
923,187,456 = 303842, the largest zeroless pandigital square
928,772,650 = number of 37-bead necklaces (turning over is allowed) where complements are equivalent
929,275,200 = number of primitive polynomials of degree 35 over GF(2)
942,060,249 = 306932, palindromic square
987,654,321 = largest zeroless pandigital number
992,436,543 = 635
997,002,999 = 9993, the largest 9-digit cube
999,950,884 = 316222, the largest 9-digit square
999,961,560 = largest triangular number with 9 digits and the 44,720th triangular number
999,999,937 = largest 9-digit prime number
999,999,999 = repdigit
References
Integers