81347320704

Names of 81347320704

• Cardinal: 81347320704 can be written as Eighty-one billion, three hundred forty-seven million, three hundred twenty thousand, seven hundred four.

Scientific notation

• Scientific notation: 8.1347320704 × 10¹⁰

Factors of 81347320704

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2005

Divisors of 81347320704

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 17 24 26 32 34 39 48 51 52 64 68 78 96 102 104 128 136 156 192 204 208 221 272 312 384 408 416 442 544 624 663 816 832 877 884 1088 1093 1248 1326 1632 1664 1754 1768 2176 2186 2496 2631 2652 3264 3279 3508 3536 4372 4992 5262 5304 6528 6558 7016 7072 8744 10524 10608 11401 13116 14032 14144 14209 14909 17488 18581 21048 21216 22802 26232 28064 28288 28418 29818 34203 34976 37162 42096 42432 42627 44727 45604 52464 55743 56128 56836 59636 68406 69952 74324 84192 84864 85254 89454 91208 104928 111486 112256 113672 119272 136812 139904 148648 168384 170508 178908 182416 193817 209856 222972 227344 238544 241553 273624 297296 336768 341016 357816 364832 387634 419712 445944 454688 477088 483106 547248 581451 594592 682032 715632 724659 729664 775268 891888 909376 954176 958561 966212 1094496 1162902 1189184 1364064 1431264 1449318 1459328 1550536 1783776 1818752 1908352 1917122 1932424 2188992 2325804 2378368 2728128 2862528 2875683 2898636 3101072 3567552 3834244 3864848 4377984 4651608 5456256 5725056 5751366 5797272 6202144 7135104 7668488 7729696 9303216 11502732 11594544 12404288 12461293 15336976 15459392 16295537 18606432 23005464 23189088 24808576 24922586 30673952 30918784 32591074 37212864 37383879 46010928 46378176 48886611 49845172 61347904 65182148 74425728 74767758 92021856 92756352 97773222 99690344 122695808 130364296 149535516 184043712 195546444 199380688 211841981 260728592 299071032 368087424 391092888 398761376 423683962 521457184 598142064 635525943 782185776 797522752 847367924 1042914368 1196284128 1271051886 1564371552 1595045504 1694735848 2085828736 2392568256 2542103772 3128743104 3389471696 4785136512 5084207544 6257486208 6778943392 10168415088 13557886784 20336830176 27115773568 40673660352 81347320704
• Sum of all divisors σ(n): 246895145280
• Sum of proper divisors (its aliquot sum) s(n): 165547824576
• 81347320704 is an abundant number, because the sum of its proper divisors (165547824576) is greater than itself. Its abundance is 84200503872

Bases of 81347320704

• Binary: 1001011110000101011011001101110000000₂
• Hexadecimal: 0x12F0AD9B80
• Base-36: 11DC3EDC

Squares and roots of 81347320704

• 81347320704 squared (81347320704²) is 6617386585719427055616
• 81347320704 cubed (81347320704³) is 538306668810865819256329196273664
• The square root of 81347320704 is 285214.5169937883
• The cube root of 81347320704 is 4332.9241290175

Scales and comparisons

• 81,347,320,704 seconds is equal to 2,586 years, 30 weeks, 5 days, 21 hours, 58 minutes, 24 seconds.
• To count from 1 to 81,347,320,704 would take you about five thousand, one hundred seventy-three 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 81347320704 cubic inches would be around 361.1 feet tall.

Recreational maths with 81347320704

• 81347320704 backwards is 40702374318
• 81347320704 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81347320704's digits is 39
• More coming soon!