90642997900

Names of 90642997900

• Cardinal: 90642997900 can be written as Ninety billion, six hundred forty-two million, nine hundred ninety-seven thousand, nine hundred.

Scientific notation

• Scientific notation: 9.06429979 × 10¹⁰

Factors of 90642997900

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 869

Divisors of 90642997900

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 5 7 10 13 14 19 20 25 26 28 35 38 49 50 52 65 70 76 91 95 98 100 130 133 140 169 175 182 190 196 245 247 260 266 325 338 343 350 364 380 455 475 490 494 532 637 650 665 676 686 700 823 845 910 931 950 980 988 1183 1225 1235 1274 1300 1330 1372 1646 1690 1715 1729 1820 1862 1900 2275 2366 2450 2470 2548 2660 3185 3211 3292 3325 3380 3430 3458 3724 4115 4225 4459 4550 4655 4732 4900 4940 5761 5915 6175 6370 6422 6517 6650 6860 6916 8230 8281 8450 8575 8645 8918 9100 9310 10699 11522 11830 12103 12350 12740 12844 13034 13300 15637 15925 16055 16460 16562 16900 17150 17290 17836 18620 20575 21398 22295 22477 23044 23275 23660 24206 24700 26068 28805 29575 31274 31850 32110 32585 33124 34300 34580 40327 41150 41405 42796 43225 44590 44954 46550 48412 53495 57610 57967 59150 60515 62548 63700 64220 65170 74893 78185 80275 80654 82300 82810 84721 86450 89180 89908 93100 106990 109459 111475 112385 115220 115934 118300 121030 130340 139087 144025 149786 156370 157339 160550 161308 162925 165620 169442 172900 201635 203281 207025 213980 218918 222950 224770 231868 242060 267475 278174 282289 288050 289835 299572 302575 312740 314678 321100 325850 338884 374465 390925 403270 406562 414050 423605 437836 445900 449540 524251 534950 547295 556348 561925 564578 576100 579670 605150 629356 651700 695435 748930 766213 781850 786695 806540 813124 828100 847210 973609 1008175 1016405 1048502 1069900 1094590 1101373 1123850 1129156 1159340 1210300 1390870 1411445 1422967 1449175 1497860 1532426 1563700 1573390 1694420 1872325 1947218 2016350 2032810 2097004 2118025 2189180 2202746 2247700 2621255 2642653 2736475 2781740 2822890 2845934 2898350 3064852 3146780 3477175 3669757 3744650 3831065 3894436 3933475 4032700 4065620 4236050 4405492 4868045 5082025 5242510 5285306 5363491 5472950 5506865 5645780 5691868 5796700 6815263 6954350 7057225 7114835 7339514 7489300 7662130 7866950 8472100 9736090 9960769 10164050 10485020 10570612 10726982 10945900 11013730 13106275 13213265 13630526 13908700 14114450 14229670 14679028 15324260 15733900 18348785 18498571 19155325 19472180 19921538 20328100 21453964 22027460 24340225 26212550 26426530 26817455 27261052 27534325 28228900 28459340 34076315 35574175 36697570 36997142 38310650 39843076 47706841 48680450 49803845 52425100 52853060 53634910 55068650 66066325 68152630 69725383 71148350 73395140 73994284 76621300 91743925 92492855 95413682 97360900 99607690 107269820 110137300 129489997 132132650 134087275 136305260 139450766 142296700 170381575 183487850 184985710 190827364 199215380 238534205 249019225 258979994 264265300 268174550 278901532 340763150 348626915 366975700 369971420 462464275 477068410 498038450 517959988 536349100 647449985 681526300 697253830 906429979 924928550 954136820 996076900 1192671025 1294899970 1394507660 1743134575 1812859958 1849857100 2385342050 2589799940 3237249925 3486269150 3625719916 4532149895 4770684100 6474499850 6972538300 9064299790 12948999700 18128599580 22660749475 45321498950 90642997900
• Sum of all divisors σ(n): 261774912000
• Sum of proper divisors (its aliquot sum) s(n): 171131914100
• 90642997900 is an abundant number, because the sum of its proper divisors (171131914100) is greater than itself. Its abundance is 80488916200

Bases of 90642997900

• Binary: 1010100011010101111100110001010001100₂
• Hexadecimal: 0x151ABE628C
• Base-36: 15N2I0SS

Squares and roots of 90642997900

• 90642997900 squared (90642997900²) is 8216153068299404410000
• 90642997900 cubed (90642997900³) is 744736745315941470506880739000000
• The square root of 90642997900 is 301069.7558706287
• The cube root of 90642997900 is 4492.0517786025

Scales and comparisons

• 90,642,997,900 seconds is equal to 2,882 years, 8 weeks, 4 days, 18 hours, 31 minutes, 40 seconds.
• To count from 1 to 90,642,997,900 would take you about five thousand, seven hundred sixty-four years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 90642997900 cubic inches would be around 374.3 feet tall.

Recreational maths with 90642997900

• 90642997900 backwards is 00979924609
• The number of decimal digits it has is: 11
• The sum of 90642997900's digits is 55
• More coming soon!