81118493608971420

Names of 81118493608971420

• Cardinal: 81118493608971420 can be written as Eighty-one quadrillion, one hundred eighteen trillion, four hundred ninety-three billion, six hundred eight million, nine hundred seventy-one thousand, four hundred twenty.

Scientific notation

• Scientific notation: 8.111849360897142 × 10¹⁶

Factors of 81118493608971420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 695779

Divisors of 81118493608971420

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 19 20 21 28 30 35 36 38 42 45 49 57 60 63 70 76 84 90 95 98 105 114 126 133 140 147 171 180 190 196 210 228 245 252 266 285 294 315 342 380 399 420 441 490 532 570 588 630 665 684 735 798 855 882 931 980 1140 1197 1260 1330 1470 1596 1710 1764 1862 1995 2205 2394 2660 2793 2940 3420 3724 3990 4410 4655 4788 5586 5985 7980 8379 8820 9310 11172 11970 13965 16758 18620 23940 27930 33516 41895 55860 83790 167580 695743 1391486 2087229 2782972 3478715 4174458 4870201 6261687 6957430 8348916 9740402 10436145 12523374 13219117 13914860 14610603 19480804 20872290 24351005 25046748 26438234 29221206 31308435 34091407 39657351 41744580 43831809 48702010 52876468 58442412 62616870 66095585 68182814 73053015 79314702 87663618 92533819 97404020 102274221 118972053 125233740 132191170 136365628 146106030 158629404 170457035 175327236 185067638 198286755 204548442 219159045 237944106 264382340 277601457 292212060 306822663 340914070 370135276 396573510 409096884 438318090 462669095 475888212 511371105 555202914 594860265 613645326 647736733 681828140 793147020 832804371 876636180 925338190 1022742210 1110405828 1189720530 1227290652 1295473466 1388007285 1534113315 1665608742 1850676380 1943210199 2045484420 2379441060 2590946932 2776014570 3068226630 3238683665 3331217484 3886420398 4164021855 5552029140 5829630597 6136453260 6477367330 7772840796 8328043710 9716050995 11659261194 12954734660 16656087420 19432101990 23318522388 29148152985 38864203980 58296305970 116592611940 484058322049 968116644098 1452174966147 1936233288196 2420291610245 2904349932294 3388408254343 4356524898441 4840583220490 5808699864588 6776816508686 7260874830735 8713049796882 9197108118931 9681166440980 10165224763029 13553633017372 14521749661470 16942041271715 17426099593764 18394216237862 20330449526058 21782624492205 23718857780401 27591324356793 29043499322940 30495674289087 33884082543430 36788432475724 40660899052116 43565248984410 45985540594655 47437715560802 50826123815145 55182648713586 60991348578174 64379756832517 67768165086860 71156573341203 82773973070379 87130497968820 91971081189310 94875431121604 101652247630290 110365297427172 118594288902005 121982697156348 128759513665034 137956621783965 142313146682406 152478371445435 165547946140758 183942162378620 193139270497551 203304495260580 213469720023609 237188577804010 257519027330068 275913243567930 284626293364812 304956742890870 321898784162585 331095892281516 355782866706015 386278540995102 413869865351895 426939440047218 450658297827619 474377155608020 551826487135860 579417811492653 609913485781740 643797568325170 711565733412030 772557081990204 827739730703790 853878880094436 901316595655238 965696352487755 1067348600118045 1158835622985306 1287595136650340 1351974893482857 1423131466824060 1655479461407580 1802633191310476 1931392704975510 2134697200236090 2253291489138095 2317671245970612 2703949786965714 2897089057463265 3862785409951020 4055924680448571 4269394400472180 4506582978276190 5407899573931428 5794178114926530 6759874467414285 8111849360897142 9013165956552380 11588356229853060 13519748934828570 16223698721794284 20279623402242855 27039497869657140 40559246804485710 81118493608971420
• Sum of all divisors σ(n): 301297695035074920
• Sum of proper divisors (its aliquot sum) s(n): 220179201426103500
• 81118493608971420 is an abundant number, because the sum of its proper divisors (220179201426103500) is greater than itself. Its abundance is 139060707817132080

Bases of 81118493608971420

• Binary: 100100000001100001101011100010100010001110000110010011100₂
• Hexadecimal: 0x12030D714470C9C
• Base-36: M6Q3TIDCBZ0

Squares and roots of 81118493608971420

• 81118493608971420 squared (81118493608971420²) is 6580210005388737111786310376816400
• 81118493608971420 cubed (81118493608971420³) is 533776723267816064561064926768816672415818187288000
• The square root of 81118493608971420 is 284813085.3892977649
• The cube root of 81118493608971420 is 432885.7526847465

Scales and comparisons

• 81,118,493,608,971,420 seconds is equal to 2,579,317,180 years, 41 weeks, 12 hours, 57 minutes.
• To count from 1 to 81,118,493,608,971,420 would take you about seven billion, seven hundred thirty-seven million, nine hundred fifty-one thousand, five hundred forty-two 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 81118493608971420 cubic inches would be around 36073.8 feet tall.

Recreational maths with 81118493608971420

• 81118493608971420 backwards is 02417980639481118
• The number of decimal digits it has is: 17
• The sum of 81118493608971420's digits is 72
• More coming soon!