81940831232

Names of 81940831232

• Cardinal: 81940831232 can be written as Eighty-one billion, nine hundred forty million, eight hundred thirty-one thousand, two hundred thirty-two.

Scientific notation

• Scientific notation: 8.1940831232 × 10¹⁰

Factors of 81940831232

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 110

Divisors of 81940831232

• Number of divisors d(n): 396
• Complete list of divisors:
  1 2 4 8 13 16 17 19 26 32 34 38 52 59 64 68 76 104 118 128 136 152 208 221 236 247 256 272 289 304 323 361 416 442 472 494 512 544 578 608 646 722 767 832 884 944 988 1003 1024 1088 1121 1156 1216 1292 1444 1534 1664 1768 1888 1976 2006 2176 2242 2312 2432 2584 2888 3068 3328 3536 3757 3776 3952 4012 4199 4352 4484 4624 4693 4864 5168 5491 5776 6136 6137 6656 7072 7514 7552 7904 8024 8398 8704 8968 9248 9386 9728 10336 10982 11552 12272 12274 13039 13312 14144 14573 15028 15104 15808 16048 16796 17051 17408 17936 18496 18772 19057 19456 20672 21299 21964 23104 24544 24548 26078 28288 29146 30056 30208 31616 32096 33592 34102 35872 36992 37544 38114 41344 42598 43928 46208 49088 49096 52156 56576 58292 60112 60416 63232 64192 67184 68204 71383 71744 73984 75088 76228 79781 82688 85196 87856 92416 98176 98192 104312 104329 113152 116584 120224 126464 128384 134368 136408 142766 143488 147968 150176 152456 159562 165376 170392 175712 184832 196352 196384 208624 208658 221663 226304 233168 240448 247741 252928 256768 268736 272816 276887 285532 286976 295936 300352 304912 319124 323969 330752 340784 351424 362083 369664 392704 392768 417248 417316 443326 466336 480896 495482 513536 537472 545632 553774 571064 573952 600704 609824 638248 647938 681568 702848 724166 785408 785536 834496 834632 886652 932672 961792 990964 1027072 1074944 1091264 1107548 1142128 1147904 1201408 1219648 1276496 1295876 1356277 1363136 1405696 1448332 1571072 1668992 1669264 1773304 1865344 1923584 1981928 2149888 2182528 2215096 2284256 2402816 2439296 2552992 2591752 2712554 2726272 2811392 2896664 3142144 3337984 3338528 3546608 3730688 3847168 3963856 4211597 4299776 4365056 4430192 4568512 4707079 4805632 4878592 5105984 5183504 5425108 5452544 5622784 5793328 6155411 6284288 6675968 6677056 7093216 7461376 7927712 8423194 8730112 8860384 9137024 9414158 9757184 10211968 10367008 10850216 10905088 11586656 12310822 13351936 13354112 14186432 14922752 15855424 16846388 17460224 17720768 18274048 18828316 19514368 20423936 20734016 21700432 21810176 23173312 24621644 26708224 28372864 31710848 33692776 35441536 36548096 37656632 40847872 41468032 43400864 46346624 49243288 53416448 56745728 63421696 67385552 70883072 73096192 75313264 80020343 81695744 82936064 86801728 92693248 98486576 106832896 113491456 126843392 134771104 141766144 150626528 160040686 165872128 173603456 185386496 196973152 226982912 253686784 269542208 283532288 301253056 320081372 331744256 347206912 370772992 393946304 539084416 602506112 640162744 694413824 787892608 1078168832 1205012224 1280325488 1388827648 1575785216 2156337664 2410024448 2560650976 3151570432 4312675328 4820048896 5121301952 6303140864 10242603904 20485207808 40970415616 81940831232
• Sum of all divisors σ(n): 201122417160
• Sum of proper divisors (its aliquot sum) s(n): 119181585928
• 81940831232 is an abundant number, because the sum of its proper divisors (119181585928) is greater than itself. Its abundance is 37240754696

Bases of 81940831232

• Binary: 1001100010100000011011101110000000000₂
• Hexadecimal: 0x13140DDC00
• Base-36: 11N5GE0W

Squares and roots of 81940831232

• 81940831232 squared (81940831232²) is 6714299822991106637824
• 81940831232 cubed (81940831232³) is 550175308636761742446851331719168
• The square root of 81940831232 is 286253.0894715375
• The cube root of 81940831232 is 4343.4362846699

Scales and comparisons

• 81,940,831,232 seconds is equal to 2,605 years, 24 weeks, 1 day, 6 hours, 32 seconds.
• To count from 1 to 81,940,831,232 would take you about five thousand, two hundred ten 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 81940831232 cubic inches would be around 362 feet tall.

Recreational maths with 81940831232

• 81940831232 backwards is 23213804918
• The number of decimal digits it has is: 11
• The sum of 81940831232's digits is 41
• More coming soon!