81783165112120

Names of 81783165112120

• Cardinal: 81783165112120 can be written as Eighty-one trillion, seven hundred eighty-three billion, one hundred sixty-five million, one hundred twelve thousand, one hundred twenty.

Scientific notation

• Scientific notation: 8.178316511212 × 10¹³

Factors of 81783165112120

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2036

Divisors of 81783165112120

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 8 10 17 20 31 34 40 62 68 85 124 136 155 170 211 248 310 340 422 449 527 620 680 844 898 961 1054 1055 1240 1321 1688 1796 1922 2108 2110 2245 2635 2642 3587 3592 3844 4216 4220 4490 4805 5270 5284 6541 6605 7174 7633 7688 8440 8980 9610 10540 10568 13082 13210 13919 14348 15266 16337 17935 17960 19220 21080 22457 26164 26420 27838 28696 30532 32674 32705 35870 38165 38440 40951 44914 52328 52840 55676 61064 65348 65410 69595 71740 76330 81685 81902 89828 94739 111197 111352 112285 130696 130820 139190 143480 152660 163370 163804 179656 189478 202771 204755 222394 224570 236623 261640 278380 278731 305320 326740 327608 378956 405542 409510 431489 444788 449140 473246 473695 555985 556760 557462 593129 653480 696167 757912 811084 819020 862978 889576 898280 946492 947390 1013855 1111970 1114924 1183115 1186258 1269481 1392334 1393655 1610563 1622168 1638040 1725956 1892984 1894780 2027710 2157445 2223940 2229848 2366230 2372516 2538962 2784668 2787310 2936909 2965645 3221126 3447107 3451912 3480835 3789560 4055420 4314890 4447880 4732460 4738427 4745032 5077924 5569336 5574620 5873818 5931290 6347405 6442252 6894214 6961670 7335313 8052815 8110840 8629780 8640661 9464920 9476854 10083193 10155848 11149240 11747636 11862580 12694810 12884504 13788428 13923340 14670626 14684545 16105630 17235535 17259560 17281322 18386999 18953708 20166386 21581177 23495272 23692135 23725160 25389620 27576856 27846680 29341252 29369090 32211260 34471070 34562644 36676565 36773998 37907416 40332772 43162354 43203305 47384270 49927453 50415965 50779240 58682504 58738180 64422520 68942140 69125288 73353130 73547996 80665544 86324708 86406610 91044179 91934995 94768540 99854906 100831930 107905885 117476360 125150219 137884280 146706260 146891237 147095992 172649416 172813220 182088358 183869990 189537080 199709812 201663860 215811770 249637265 250300438 267860491 293412520 293782474 312578983 345626440 364176716 367739980 399419624 403327720 431623540 455220895 499274530 500600876 535720982 569996969 587564948 625157966 625751095 728353432 734456185 735479960 863247080 910441790 998549060 1001201752 1071441964 1139993938 1175129896 1250315932 1251502190 1339302455 1468912370 1547751043 1562894915 1820883580 1997098120 2127553723 2142883928 2279987876 2500631864 2503004380 2678604910 2849984845 2937824740 3095502086 3125789830 3641767160 3879656789 4255107446 4553628347 4559975752 5006008760 5357209820 5699969690 5875649480 6191004172 6251579660 7738755215 7759313578 8510214892 9107256694 9689948473 10637768615 10714419640 11399939380 12382008344 12503159320 15477510430 15518627156 17020429784 18214513388 19379896946 19398283945 21275537230 22768141735 22799878760 30955020860 31037254312 36429026776 38759793892 38796567890 42551074460 45536283470 48449742365 61910041720 65954165413 77519587784 77593135780 85102148920 91072566940 96899484730 120269360459 131908330826 155186271560 182145133880 193798969460 240538720918 263816661652 329770827065 387597938920 481077441836 527633323304 601346802295 659541654130 962154883672 1202693604590 1319083308260 2044579127803 2405387209180 2638166616520 4089158255606 4810774418360 8178316511212 10222895639015 16356633022424 20445791278030 40891582556060 81783165112120
• Sum of all divisors σ(n): 202882268808000
• Sum of proper divisors (its aliquot sum) s(n): 121099103695880
• 81783165112120 is an abundant number, because the sum of its proper divisors (121099103695880) is greater than itself. Its abundance is 39315938583760

Bases of 81783165112120

• Binary: 10010100110000110100000100000010100111100111000₂
• Hexadecimal: 0x4A61A0814F38
• Base-36: SZMO0XFZS

Squares and roots of 81783165112120

• 81783165112120 squared (81783165112120²) is 6688486095756281932170894400
• 81783165112120 cubed (81783165112120³) is 547005562719354866101445395147776680128000
• The square root of 81783165112120 is 9043404.5089291455
• The cube root of 81783165112120 is 43406.4869419215

Scales and comparisons

• 81,783,165,112,120 seconds is equal to 2,600,451 years, 35 weeks, 2 days, 28 minutes, 40 seconds.
• To count from 1 to 81,783,165,112,120 would take you about six million, five hundred one thousand, one hundred twenty-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 81783165112120 cubic inches would be around 3617.2 feet tall.

Recreational maths with 81783165112120

• 81783165112120 backwards is 02121156138718
• The number of decimal digits it has is: 14
• The sum of 81783165112120's digits is 46
• More coming soon!