81304290488221696

Names of 81304290488221696

• Cardinal: 81304290488221696 can be written as Eighty-one quadrillion, three hundred four trillion, two hundred ninety billion, four hundred eighty-eight million, two hundred twenty-one thousand, six hundred ninety-six.

Scientific notation

• Scientific notation: 8.1304290488221696 × 10¹⁶

Factors of 81304290488221696

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 24
• Sum of prime factors: 976

Divisors of 81304290488221696

• Number of divisors d(n): 304
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 343 392 448 512 686 784 896 967 1024 1372 1568 1792 1934 2048 2744 3136 3584 3868 4096 5488 6272 6769 7168 7736 8192 10976 12544 13538 14336 15472 16384 21952 25088 27076 28672 30944 32768 43904 47383 50176 54152 57344 61888 65536 87808 94766 100352 108304 114688 123776 131072 175616 189532 200704 216608 229376 247552 262144 331681 351232 379064 401408 433216 458752 495104 663362 702464 758128 802816 866432 917504 935089 990208 1326724 1404928 1516256 1605632 1732864 1835008 1870178 1980416 2653448 2809856 3032512 3211264 3465728 3740356 3960832 5306896 5619712 6065024 6422528 6545623 6931456 7480712 7921664 10613792 11239424 12130048 12845056 13091246 13862912 14961424 15843328 21227584 22478848 24260096 26182492 27725824 29922848 31686656 42455168 44957696 45819361 48520192 52364984 55451648 59845696 63373312 84910336 89915392 91638722 97040384 104729968 110903296 119691392 126746624 169820672 183277444 194080768 209459936 221806592 239382784 253493248 320735527 339641344 366554888 388161536 418919872 443613184 478765568 641471054 679282688 733109776 776323072 837839744 887226368 904231063 957531136 1282942108 1358565376 1466219552 1552646144 1675679488 1774452736 1808462126 1915062272 2565884216 2717130752 2932439104 3105292288 3351358976 3616924252 3830124544 5131768432 5434261504 5864878208 6210584576 6329617441 6702717952 7233848504 7660249088 10263536864 10868523008 11729756416 12421169152 12659234882 13405435904 14467697008 15320498176 20527073728 21737046016 23459512832 25318469764 26810871808 28935394016 30640996352 41054147456 43474092032 44307322087 46919025664 50636939528 53621743616 57870788032 61281992704 82108294912 86948184064 88614644174 93838051328 101273879056 107243487232 115741576064 122563985408 164216589824 177229288348 187676102656 202547758112 214486974464 231483152128 245127970816 310151254609 328433179648 354458576696 375352205312 405095516224 428973948928 462966304256 620302509218 656866359296 708917153392 750704410624 810191032448 857947897856 925932608512 1240605018436 1313732718592 1417834306784 1501408821248 1620382064896 1715895795712 1851865217024 2481210036872 2627465437184 2835668613568 3002817642496 3240764129792 3703730434048 4962420073744 5254930874368 5671337227136 6005635284992 6481528259584 7407460868096 9924840147488 10509861748736 11342674454272 12011270569984 12963056519168 14814921736192 19849680294976 21019723497472 22685348908544 25926113038336 29629843472384 39699360589952 42039446994944 45370697817088 51852226076672 59259686944768 79398721179904 84078893989888 90741395634176 103704452153344 118519373889536 158797442359808 181482791268352 207408904306688 237038747779072 317594884719616 362965582536704 414817808613376 635189769439232 725931165073408 829635617226752 1270379538878464 1451862330146816 1659271234453504 2540759077756928 2903724660293632 5081518155513856 5807449320587264 10163036311027712 11614898641174528 20326072622055424 40652145244110848 81304290488221696
• Sum of all divisors σ(n): 189826941537376000
• Sum of proper divisors (its aliquot sum) s(n): 108522651049154304
• 81304290488221696 is an abundant number, because the sum of its proper divisors (108522651049154304) is greater than itself. Its abundance is 27218360560932608

Bases of 81304290488221696

• Binary: 100100000110110011101001001001001010001000000000000000000₂
• Hexadecimal: 0x120D9D249440000
• Base-36: M8JYRF244XS

Squares and roots of 81304290488221696

• 81304290488221696 squared (81304290488221696²) is 6610387651793136950112104445116416
• 81304290488221696 cubed (81304290488221696³) is 537452877881142897177532835260033192548515536961536
• The square root of 81304290488221696 is 285139072.1879793449
• 81304290488221696 is a perfect cube number. Its cube root is 433216

Scales and comparisons

• 81,304,290,488,221,696 seconds is equal to 2,585,224,946 years, 43 weeks, 5 days, 17 hours, 8 minutes, 16 seconds.
• To count from 1 to 81,304,290,488,221,696 would take you about seven billion, seven hundred fifty-five million, six hundred seventy-four thousand, eight hundred forty 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 81304290488221696 cubic inches would be around 36101.3 feet tall.

Recreational maths with 81304290488221696

• 81304290488221696 backwards is 69612288409240318
• The number of decimal digits it has is: 17
• The sum of 81304290488221696's digits is 73
• More coming soon!