81742717056

Names of 81742717056

• Cardinal: 81742717056 can be written as Eighty-one billion, seven hundred forty-two million, seven hundred seventeen thousand and fifty-six.

Scientific notation

• Scientific notation: 8.1742717056 × 10¹⁰

Factors of 81742717056

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2096

Divisors of 81742717056

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 13 14 16 21 22 24 26 28 32 33 39 42 44 48 52 56 64 66 77 78 84 88 91 96 104 109 112 128 132 143 154 156 168 176 182 192 208 218 224 231 264 273 286 308 312 327 336 352 364 384 416 429 436 448 462 528 546 572 616 624 654 672 704 728 763 832 858 872 896 924 1001 1056 1092 1144 1199 1232 1248 1308 1344 1408 1417 1456 1526 1664 1716 1744 1848 1951 2002 2112 2184 2288 2289 2398 2464 2496 2616 2688 2834 2912 3003 3052 3432 3488 3597 3696 3902 4004 4224 4251 4368 4576 4578 4796 4928 4992 5232 5668 5824 5853 6006 6104 6864 6976 7194 7392 7804 8008 8393 8502 8736 9152 9156 9592 9856 9919 10464 11336 11648 11706 12012 12208 13657 13728 13952 14388 14784 15587 15608 16016 16786 17004 17472 18304 18312 19184 19838 20928 21461 22672 23412 24024 24416 25179 25363 27314 27456 28776 29568 29757 31174 31216 32032 33572 34008 34944 36624 38368 39676 40971 41856 42922 45344 46761 46824 48048 48832 50358 50726 54628 54912 57552 59514 62348 62432 64064 64383 67144 68016 73248 76089 76736 79352 81942 85844 90688 93522 93648 96096 97664 100716 101452 109109 109256 115104 119028 124696 124864 128128 128766 134288 136032 146496 150227 152178 153472 158704 163884 171688 177541 181376 187044 187296 192192 201432 202904 212659 218218 218512 230208 238056 249392 249728 257532 268576 272064 278993 292992 300454 304356 317408 327327 327768 343376 355082 374088 374592 384384 402864 405808 425318 436436 437024 450681 460416 476112 498784 515064 532623 537152 544128 557986 600908 608712 634816 637977 654654 655536 686752 710164 748176 749184 805728 811616 836979 850636 872872 874048 901362 952224 997568 1030128 1065246 1074304 1115972 1201816 1217424 1269632 1275954 1309308 1311072 1373504 1420328 1488613 1496352 1611456 1623232 1673958 1701272 1745744 1748096 1802724 1904448 1952951 1995136 2060256 2130492 2231944 2339249 2403632 2434848 2551908 2618616 2622144 2747008 2764567 2840656 2977226 2992704 3222912 3246464 3347916 3402544 3491488 3605448 3808896 3905902 4120512 4260984 4463888 4465839 4678498 4807264 4869696 5103816 5237232 5244288 5529134 5681312 5858853 5954452 5985408 6695832 6805088 6982976 7017747 7210896 7811804 8241024 8293701 8521968 8927776 8931678 9356996 9614528 9739392 10207632 10474464 11058268 11362624 11717706 11908904 13391664 13610176 13965952 14035494 14421792 15623608 16374743 16587402 17043936 17855552 17863356 18713992 19229056 19351969 20415264 20948928 22116536 22725248 23435412 23817808 26783328 27220352 28070988 28843584 30410237 31247216 32749486 33174804 34087872 35711104 35726712 37427984 38703938 40830528 41897856 44233072 46870824 47635616 49124229 53566656 56141976 57687168 58055907 60820474 62494432 65498972 66349608 68175744 71453424 74855968 77407876 81661056 88466144 91230711 93741648 95271232 98248458 107133312 112283952 116111814 121640948 124988864 130997944 132699216 142906848 149711936 154815752 176932288 182461422 187483296 190542464 196496916 212871659 224567904 232223628 243281896 249977728 261995888 265398432 285813696 299423872 309631504 353864576 364922844 374966592 392993832 425743318 449135808 464447256 486563792 523991776 530796864 571627392 619263008 638614977 729845688 749933184 785987664 851486636 898271616 928894512 973127584 1047983552 1061593728 1238526016 1277229954 1459691376 1571975328 1702973272 1857789024 1946255168 2095967104 2477052032 2554459908 2919382752 3143950656 3405946544 3715578048 3892510336 5108919816 5838765504 6287901312 6811893088 7431156096 10217839632 11677531008 13623786176 20435679264 27247572352 40871358528 81742717056
• Sum of all divisors σ(n): 294355353600
• Sum of proper divisors (its aliquot sum) s(n): 212612636544
• 81742717056 is an abundant number, because the sum of its proper divisors (212612636544) is greater than itself. Its abundance is 130869919488

Bases of 81742717056

• Binary: 1001100001000001111101110000010000000₂
• Hexadecimal: 0x13083EE080
• Base-36: 11JVI45C

Squares and roots of 81742717056

• 81742717056 squared (81742717056²) is 6681871791697273307136
• 81742717056 cubed (81742717056³) is 546194355273177981951919433711616
• The square root of 81742717056 is 285906.8328249605
• The cube root of 81742717056 is 4339.9329814735

Scales and comparisons

• 81,742,717,056 seconds is equal to 2,599 years, 8 weeks, 4 days, 6 hours, 17 minutes, 36 seconds.
• To count from 1 to 81,742,717,056 would take you about five thousand, one hundred ninety-eight 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 81742717056 cubic inches would be around 361.7 feet tall.

Recreational maths with 81742717056

• 81742717056 backwards is 65071724718
• 81742717056 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81742717056's digits is 48
• More coming soon!