21318121125

Names of 21318121125

• Cardinal: 21318121125 can be written as Twenty-one billion, three hundred eighteen million, one hundred twenty-one thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 2.1318121125 × 10¹⁰

Factors of 21318121125

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 80

Divisors of 21318121125

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 7 9 15 17 19 21 25 29 35 45 51 57 63 75 85 87 95 105 119 125 133 145 153 171 175 203 225 255 261 285 289 315 323 357 375 399 425 435 475 493 525 551 595 609 665 725 765 855 867 875 969 1015 1071 1125 1197 1275 1305 1425 1445 1479 1575 1615 1653 1785 1827 1995 2023 2125 2175 2261 2375 2465 2601 2625 2755 2907 2975 3045 3325 3451 3625 3825 3857 4275 4335 4437 4845 4913 4959 5075 5355 5491 5985 6069 6375 6525 6783 7125 7225 7395 7875 8075 8265 8381 8925 9135 9367 9975 10115 10353 10875 11305 11571 12325 13005 13775 14535 14739 14875 15225 16473 16625 17255 18207 19125 19285 20349 21375 21675 22185 24225 24565 24795 25143 25375 26775 27455 28101 29925 30345 31059 32625 33915 34391 34713 36125 36975 38437 40375 41325 41905 44217 44625 45675 46835 49419 49875 50575 51765 56525 57855 58667 61625 65025 65569 68875 72675 73695 75429 76125 82365 84303 86275 91035 93347 96425 101745 103173 108375 110925 115311 121125 122825 123975 125715 133875 137275 140505 142477 149625 151725 155295 159239 169575 171955 173565 176001 184875 192185 196707 206625 209525 221085 228375 234175 247095 252875 258825 280041 282625 289275 293335 309519 325125 327845 345933 363375 368475 377145 411825 421515 427431 431375 455175 466735 477717 482125 508725 515865 528003 554625 576555 590121 614125 619875 628575 653429 686375 702525 712385 758625 776475 796195 840123 847875 859775 867825 880005 960925 983535 997339 1047625 1105425 1114673 1170875 1235475 1282293 1294125 1400205 1433151 1446375 1466675 1547595 1639225 1729665 1842375 1885725 1960287 2059125 2107575 2137155 2275875 2333675 2388585 2543625 2579325 2640015 2707063 2882775 2950605 2992017 3142875 3267145 3344019 3512625 3561925 3882375 3980975 4200615 4298875 4339125 4400025 4804625 4917675 4986695 5527125 5573365 5880861 6177375 6411465 7001025 7165755 7333375 7737975 8121189 8196125 8648325 8976051 9428625 9801435 10032057 10537875 10685775 11668375 11942925 12896625 13200075 13535315 14413875 14753025 14960085 16335725 16720095 17809625 18949441 19904875 21003075 22000125 24363567 24588375 24933475 27866825 29404305 32057325 35005125 35828775 38689875 40605945 43241625 44880255 49007175 50160285 53428875 56848323 59714625 66000375 67676575 73765125 74800425 81678625 83600475 94747205 105015375 121817835 124667375 139334125 147021525 160286625 170544969 179143875 203029725 224401275 245035875 250801425 284241615 338382875 374002125 418002375 473736025 609089175 735107625 852724845 1015148625 1122006375 1254007125 1421208075 2368680125 3045445875 4263624225 7106040375 21318121125
• Sum of all divisors σ(n): 50813568000
• Sum of proper divisors (its aliquot sum) s(n): 29495446875
• 21318121125 is an abundant number, because the sum of its proper divisors (29495446875) is greater than itself. Its abundance is 8177325750

Bases of 21318121125

• Binary: 10011110110101010001011011010100101₂
• Hexadecimal: 0x4F6A8B6A5
• Base-36: 9SK9BJ9

Squares and roots of 21318121125

• 21318121125 squared (21318121125²) is 454462288300171265625
• 21318121125 cubed (21318121125³) is 9688282108727721398838298828125
• The square root of 21318121125 is 146007.2639460105
• The cube root of 21318121125 is 2772.7857183897

Scales and comparisons

• 21,318,121,125 seconds is equal to 677 years, 44 weeks, 1 day, 12 hours, 18 minutes, 45 seconds.
• To count from 1 to 21,318,121,125 would take you about one thousand, three hundred fifty-five 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 21318121125 cubic inches would be around 231.1 feet tall.

Recreational maths with 21318121125

• 21318121125 backwards is 52112181312
• The number of decimal digits it has is: 11
• The sum of 21318121125's digits is 27
• More coming soon!