81342318839744

Names of 81342318839744

• Cardinal: 81342318839744 can be written as Eighty-one trillion, three hundred forty-two billion, three hundred eighteen million, eight hundred thirty-nine thousand, seven hundred forty-four.

Scientific notation

• Scientific notation: 8.1342318839744 × 10¹³

Factors of 81342318839744

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 96526

Divisors of 81342318839744

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 8 16 19 31 32 38 62 64 76 124 152 248 304 496 589 608 727 961 992 1178 1216 1454 1922 1984 2356 2908 3844 4712 5816 7688 9424 11632 13813 15376 18259 18848 22537 23264 27626 30752 36518 37696 45074 46528 55252 61504 73036 90148 95747 110504 146072 180296 191494 221008 292144 360592 382988 428203 442016 584288 698647 721184 765976 856406 884032 1168576 1397294 1442368 1531952 1712812 1819193 2794588 2968157 3063904 3425624 3638386 5589176 5936314 6127808 6851248 7276772 11178352 11872628 13274293 13702496 14553544 22356704 23745256 26548586 27404992 29107088 44713408 47490512 53097172 56394983 58214176 69608069 92012867 94981024 106194344 112789966 116428352 139216138 184025734 189962048 212388688 225579932 278432276 368051468 424777376 451159864 556864552 736102936 849554752 902319728 1113729104 1322553311 1472205872 1748244473 1804639456 2157850139 2227458208 2645106622 2944411744 3496488946 3609278912 4315700278 4454916416 5290213244 5888823488 6992977892 8631400556 10580426488 13985955784 17262801112 21160852976 27971911568 34525602224 40999152641 42321705952 55943823136 66893354309 69051204448 81998305282 84643411904 111887646272 133786708618 138102408896 163996610564 267573417236 327993221128 535146834472 655986442256 1070293668944 1270973731871 1311972884512 2140587337888 2541947463742 2623945769024 4281174675776 5083894927484 10167789854968 20335579709936 40671159419872 81342318839744
• Sum of all divisors σ(n): 175810194967680
• Sum of proper divisors (its aliquot sum) s(n): 94467876127936
• 81342318839744 is an abundant number, because the sum of its proper divisors (94467876127936) is greater than itself. Its abundance is 13125557288192

Bases of 81342318839744

• Binary: 10010011111101011111100000001010000011111000000₂
• Hexadecimal: 0x49FAFC0507C0
• Base-36: SU058FV7K

Squares and roots of 81342318839744

• 81342318839744 squared (81342318839744²) is 6616572834226571678353985536
• 81342318839744 cubed (81342318839744³) is 538207377108046415615221815504401677942784
• The square root of 81342318839744 is 9018997.6626975573
• The cube root of 81342318839744 is 43328.3531993579

Scales and comparisons

• 81,342,318,839,744 seconds is equal to 2,586,434 years, 6 weeks, 5 days, 14 hours, 35 minutes, 44 seconds.
• To count from 1 to 81,342,318,839,744 would take you about six million, four hundred sixty-six thousand and eighty-five 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 81342318839744 cubic inches would be around 3610.7 feet tall.

Recreational maths with 81342318839744

• 81342318839744 backwards is 44793881324318
• The number of decimal digits it has is: 14
• The sum of 81342318839744's digits is 65
• More coming soon!