21531045888

Names of 21531045888

• Cardinal: 21531045888 can be written as Twenty-one billion, five hundred thirty-one million, forty-five thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1531045888 × 10¹⁰

Factors of 21531045888

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 1625

Divisors of 21531045888

• Number of divisors d(n): 312
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 88 96 99 108 121 128 132 144 176 192 198 216 242 256 264 288 297 352 363 384 396 432 484 512 528 576 594 704 726 768 792 864 968 1024 1056 1089 1152 1188 1408 1452 1536 1584 1609 1728 1936 2048 2112 2178 2304 2376 2816 2904 3072 3168 3218 3267 3456 3872 4096 4224 4356 4608 4752 4827 5632 5808 6144 6336 6436 6534 6912 7744 8448 8712 9216 9504 9654 11264 11616 12288 12672 12872 13068 13824 14481 15488 16896 17424 17699 18432 19008 19308 22528 23232 25344 25744 26136 27648 28962 30976 33792 34848 35398 36864 38016 38616 43443 45056 46464 50688 51488 52272 53097 55296 57924 61952 67584 69696 70796 76032 77232 86886 92928 101376 102976 104544 106194 110592 115848 123904 135168 139392 141592 152064 154464 159291 173772 185856 194689 202752 205952 209088 212388 231696 247808 278784 283184 304128 308928 318582 347544 371712 389378 405504 411904 418176 424776 463392 477873 495616 557568 566368 584067 608256 617856 637164 695088 743424 778756 823808 836352 849552 926784 955746 1115136 1132736 1168134 1216512 1235712 1274328 1390176 1486848 1557512 1647616 1672704 1699104 1752201 1853568 1911492 2230272 2265472 2336268 2471424 2548656 2780352 3115024 3295232 3345408 3398208 3504402 3707136 3822984 4460544 4530944 4672536 4942848 5097312 5256603 5560704 6230048 6590464 6690816 6796416 7008804 7414272 7645968 9061888 9345072 9885696 10194624 10513206 11121408 12460096 13381632 13592832 14017608 14828544 15291936 18123776 18690144 19771392 20389248 21026412 22242816 24920192 27185664 28035216 29657088 30583872 36247552 37380288 40778496 42052824 44485632 49840384 54371328 56070432 59314176 61167744 72495104 74760576 81556992 84105648 88971264 99680768 108742656 112140864 122335488 149521152 163113984 168211296 177942528 199361536 217485312 224281728 244670976 299042304 326227968 336422592 398723072 448563456 489341952 598084608 652455936 672845184 797446144 897126912 978683904 1196169216 1345690368 1794253824 1957367808 2392338432 2691380736 3588507648 5382761472 7177015296 10765522944 21531045888
• Sum of all divisors σ(n): 70157553200
• Sum of proper divisors (its aliquot sum) s(n): 48626507312
• 21531045888 is an abundant number, because the sum of its proper divisors (48626507312) is greater than itself. Its abundance is 27095461424

Bases of 21531045888

• Binary: 10100000011010110011011000000000000₂
• Hexadecimal: 0x50359B000
• Base-36: 9W311C0

Squares and roots of 21531045888

• 21531045888 squared (21531045888²) is 463585937031161708544
• 21531045888 cubed (21531045888³) is 9981490083249421232609345667072
• The square root of 21531045888 is 146734.6103957755
• The cube root of 21531045888 is 2781.9866537233

Scales and comparisons

• 21,531,045,888 seconds is equal to 684 years, 32 weeks, 1 day, 22 hours, 4 minutes, 48 seconds.
• To count from 1 to 21,531,045,888 would take you about one thousand, three hundred sixty-nine 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 21531045888 cubic inches would be around 231.8 feet tall.

Recreational maths with 21531045888

• 21531045888 backwards is 88854013512
• The number of decimal digits it has is: 11
• The sum of 21531045888's digits is 45
• More coming soon!