81640296392004

Names of 81640296392004

• Cardinal: 81640296392004 can be written as Eighty-one trillion, six hundred forty billion, two hundred ninety-six million, three hundred ninety-two thousand and four.

Scientific notation

• Scientific notation: 8.1640296392004 × 10¹³

Factors of 81640296392004

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 506

Divisors of 81640296392004

• Number of divisors d(n): 405
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 73 84 98 126 146 147 196 219 252 292 294 343 421 438 441 511 588 657 686 842 876 882 1022 1029 1263 1314 1372 1533 1684 1764 2044 2058 2401 2526 2628 2947 3066 3087 3577 3789 4116 4599 4802 5052 5329 5894 6132 6174 7154 7203 7578 8841 9198 9604 10658 10731 11788 12348 14308 14406 15156 15987 17682 18396 20629 21316 21462 21609 25039 26523 28812 30733 31974 32193 35364 37303 41258 42924 43218 47961 50078 53046 61466 61887 63948 64386 74606 75117 82516 86436 92199 95922 100156 106092 111909 122932 123774 128772 144403 149212 150234 175273 177241 184398 185661 191844 215131 223818 225351 247548 261121 276597 288806 300468 335727 350546 354482 368796 371322 430262 433209 447636 450702 522242 525819 531723 553194 577612 645393 671454 701092 708964 742644 783363 860524 866418 901404 1010821 1044484 1051638 1063446 1106388 1240687 1290786 1299627 1342908 1505917 1566726 1577457 1595169 1732836 1827847 1936179 2021642 2103276 2126892 2243509 2350089 2481374 2581572 2599254 3011834 3032463 3133452 3154914 3190338 3655694 3722061 3872358 4043284 4487018 4517751 4700178 4962748 5198508 5483541 6023668 6064926 6309828 6380676 6730527 7311388 7444122 7744716 8684809 8974036 9035502 9097389 9400356 10541419 10967082 11166183 12129852 12794929 12938593 13461054 13553253 14888244 15704563 16450623 17369618 18071004 18194778 20191581 21082838 21934164 22332366 25589858 25877186 26054427 26922108 27106506 31409126 31624257 32901246 34739236 36389556 38384787 38815779 40383162 42165676 44664732 47113689 51179716 51754372 52108854 54213012 60793663 62818252 63248514 65802492 73789933 76769574 77631558 78163281 80766324 90570151 94227378 94872771 104217708 109931941 115154361 116447337 121587326 126497028 141341067 147579866 153539148 155263116 156326562 181140302 182380989 188454756 189745542 219863882 221369799 230308722 232894674 243174652 271710453 282682134 295159732 312653124 329795823 362280604 364761978 379491084 425555641 439727764 442739598 460617444 465789348 543420906 547142967 565364268 633991057 659591646 664109397 729523956 769523587 815131359 851111282 885479196 944517289 989387469 1086841812 1094285934 1267982114 1276666923 1319183292 1328218794 1539047174 1630262718 1702222564 1889034578 1901973171 1978774938 2188571868 2308570761 2535964228 2553333846 2656437588 2833551867 3078094348 3260525436 3778069156 3803946342 3830000769 3957549876 4437937399 4617141522 5106667692 5386665109 5667103734 5705919513 6611621023 6925712283 7607892684 7660001538 8500655601 8875874798 9234283044 10773330218 11334207468 11411839026 13223242046 13313812197 13851424566 15320003076 16159995327 17001311202 17751749596 19834863069 21546660436 22823678052 26446484092 26627624394 27702849132 31065561793 32319990654 34002622404 39669726138 39941436591 46281347161 48479985981 53255248788 59504589207 62131123586 64639981308 79339452276 79882873182 92562694322 93196685379 96959971962 119009178414 124262247172 138844041483 159765746364 185125388644 186393370758 193919943924 238018356828 277688082966 279590056137 323969430127 372786741516 416532124449 555376165932 559180112274 647938860254 833064248898 971908290381 1118360224548 1295877720508 1666128497796 1943816580762 2267786010889 2915724871143 3887633161524 4535572021778 5831449742286 6803358032667 9071144043556 11662899484572 13606716065334 20410074098001 27213432130668 40820148196002 81640296392004
• Sum of all divisors σ(n): 244673232657399
• Sum of proper divisors (its aliquot sum) s(n): 163032936265395
• 81640296392004 is an abundant number, because the sum of its proper divisors (163032936265395) is greater than itself. Its abundance is 81392639873391

Bases of 81640296392004

• Binary: 10010100100000001011100110111011010010101000100₂
• Hexadecimal: 0x4A405CDDA544
• Base-36: SXT18KY10

Squares and roots of 81640296392004

• 81640296392004 squared (81640296392004²) is 6665137994974261340035136016
• 81640296392004 cubed (81640296392004³) is 544143841403305962763715497085634194816064
• 81640296392004 is a perfect square number. Its square root is 9035502
• The cube root of 81640296392004 is 43381.1963095939

Scales and comparisons

• 81,640,296,392,004 seconds is equal to 2,595,908 years, 46 weeks, 3 days, 20 hours, 53 minutes, 24 seconds.
• To count from 1 to 81,640,296,392,004 would take you about six million, four hundred eighty-nine thousand, seven hundred seventy-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 81640296392004 cubic inches would be around 3615.1 feet tall.

Recreational maths with 81640296392004

• 81640296392004 backwards is 40029369204618
• The number of decimal digits it has is: 14
• The sum of 81640296392004's digits is 54
• More coming soon!