81999083712

Names of 81999083712

• Cardinal: 81999083712 can be written as Eighty-one billion, nine hundred ninety-nine million, eighty-three thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 8.1999083712 × 10¹⁰

Factors of 81999083712

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 115

Divisors of 81999083712

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 19 21 24 26 28 32 38 39 42 48 49 52 56 57 64 71 76 78 84 91 96 98 104 112 114 133 142 147 152 156 168 182 192 196 208 213 224 228 247 266 273 284 294 304 312 336 343 364 392 399 416 426 448 456 494 497 532 546 568 588 608 624 637 672 686 728 741 784 798 832 852 912 923 931 988 994 1029 1064 1092 1136 1176 1216 1248 1274 1344 1349 1372 1456 1482 1491 1568 1596 1704 1729 1824 1846 1862 1911 1976 1988 2058 2128 2184 2272 2352 2496 2548 2698 2744 2769 2793 2912 2964 2982 3136 3192 3408 3458 3479 3648 3692 3724 3822 3952 3976 4047 4116 4256 4368 4459 4544 4704 5041 5096 5187 5396 5488 5538 5586 5824 5928 5964 6384 6461 6517 6816 6916 6958 7384 7448 7644 7904 7952 8094 8232 8512 8736 8918 9408 9443 10082 10192 10374 10437 10792 10976 11076 11172 11856 11928 12103 12768 12922 13034 13377 13632 13832 13916 14768 14896 15123 15288 15808 15904 16188 16464 17472 17537 17836 18886 19383 19551 20164 20384 20748 20874 21584 21952 22152 22344 23712 23856 24206 24353 25536 25844 26068 26754 27664 27832 28329 29536 29792 30246 30576 31808 32376 32928 35074 35287 35672 36309 37772 38766 39102 40328 40768 41496 41748 43168 44304 44688 45227 47424 47712 48412 48706 51688 52136 52611 53508 55328 55664 56658 59072 59584 60492 61152 64752 65533 65856 66101 70148 70574 71344 72618 73059 75544 77532 78204 80656 82992 83496 84721 86336 88608 89376 90454 95424 95779 96824 97412 103376 104272 105222 105861 107016 110656 111328 113316 120984 122304 122759 129504 131066 132202 135681 140296 141148 142688 145236 146118 151088 155064 156408 161312 165984 166992 169442 177216 178752 180908 191558 193648 194824 196599 198303 206752 208544 210444 211722 214032 222656 226632 241968 245518 247009 254163 259008 262132 264404 271362 280592 282296 285376 287337 290472 292236 302176 310128 312816 316589 322624 331968 333984 338884 361816 368277 383116 387296 389648 393198 396606 413504 417088 420888 423444 428064 453264 458731 462707 483936 491036 494018 508326 524264 528808 542724 561184 564592 574674 580944 584472 604352 620256 625632 633178 667968 670453 677768 723632 736554 741027 766232 774592 779296 786396 793212 841776 846888 856128 859313 906528 917462 925414 949767 967872 982072 988036 1016652 1048528 1057616 1085448 1122368 1129184 1149348 1161888 1168944 1240512 1245127 1251264 1266356 1340906 1355536 1376193 1388121 1447264 1473108 1482054 1532464 1558592 1572792 1586424 1683552 1693776 1718626 1729063 1813056 1834924 1850828 1899534 1964144 1976072 2011359 2033304 2097056 2115232 2170896 2258368 2298696 2323776 2337888 2490254 2532712 2577939 2681812 2711072 2752386 2776242 2894528 2946216 2964108 3064928 3145584 3172848 3211117 3367104 3387552 3437252 3458126 3669848 3701656 3735381 3799068 3928288 3952144 4022718 4066608 4194112 4230464 4341792 4597392 4675776 4693171 4980508 5065424 5155878 5187189 5363624 5422144 5504772 5552484 5892432 5928216 6015191 6129856 6291168 6345696 6422234 6775104 6874504 6916252 7339696 7403312 7470762 7598136 7856576 7904288 8045436 8133216 8683584 8715889 9194784 9386342 9633351 9961016 10130848 10311756 10374378 10727248 11009544 11104968 11784864 11856432 12030382 12582336 12691392 12844468 13749008 13832504 14079513 14679392 14806624 14941524 15196272 15808576 16090872 16266432 17431778 18045573 18389568 18772684 19266702 19922032 20261696 20623512 20748756 21454496 22019088 22209936 22477819 23569728 23712864 24060764 25688936 26147667 27498016 27665008 28159026 29358784 29613248 29883048 30392544 32181744 32852197 34863556 36091146 37545368 38533404 39844064 41247024 41497512 42908992 44038176 44419872 44955638 47425728 48121528 51377872 52295334 54996032 55330016 56318052 59766096 60785088 61011223 64363488 65704394 67433457 69727112 72182292 75090736 77066808 79688128 82494048 82995024 88076352 88839744 89911276 96243056 98556591 102755744 104590668 110660032 112636104 119532192 122022446 128726976 131408788 134866914 139454224 144364584 150181472 154133616 164988096 165990048 179822552 183033669 192486112 197113182 205511488 209181336 225272208 239064384 244044892 262817576 269733828 278908448 288729168 300362944 308267232 331980096 359645104 366067338 384972224 394226364 418362672 427078561 450544416 488089784 525635152 539467656 557816896 577458336 616534464 719290208 732134676 788452728 836725344 854157122 901088832 976179568 1051270304 1078935312 1154916672 1281235683 1438580416 1464269352 1576905456 1673450688 1708314244 1952359136 2102540608 2157870624 2562471366 2928538704 3153810912 3416628488 3904718272 4315741248 5124942732 5857077408 6307621824 6833256976 10249885464 11714154816 13666513952 20499770928 27333027904 40999541856 81999083712
• Sum of all divisors σ(n): 290909248000
• Sum of proper divisors (its aliquot sum) s(n): 208910164288
• 81999083712 is an abundant number, because the sum of its proper divisors (208910164288) is greater than itself. Its abundance is 126911080576

Bases of 81999083712

• Binary: 1001100010111100001101011100011000000₂
• Hexadecimal: 0x131786B8C0
• Base-36: 11O44XXC

Squares and roots of 81999083712

• 81999083712 squared (81999083712²) is 6723849729607583698944
• 81999083712 cubed (81999083712³) is 551349516845000820639755662000128
• The square root of 81999083712 is 286354.8213528105
• The cube root of 81999083712 is 4344.4653036097

Scales and comparisons

• 81,999,083,712 seconds is equal to 2,607 years, 16 weeks, 3 days, 11 hours, 15 minutes, 12 seconds.
• To count from 1 to 81,999,083,712 would take you about five thousand, two hundred fourteen 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 81999083712 cubic inches would be around 362 feet tall.

Recreational maths with 81999083712

• 81999083712 backwards is 21738099918
• 81999083712 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81999083712's digits is 57
• More coming soon!