81440907327
81,440,907,327 is an odd composite number composed of five prime numbers multiplied together.
81440907327 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 81440907327:
33 × 13 × 43 × 1193 × 4523
(3 × 3 × 3 × 13 × 43 × 1193 × 4523)See below for interesting mathematical facts about the number 81440907327 from the Numbermatics database.
Names of 81440907327
- Cardinal: 81440907327 can be written as Eighty-one billion, four hundred forty million, nine hundred seven thousand, three hundred twenty-seven.
Scientific notation
- Scientific notation: 8.1440907327 × 1010
Factors of 81440907327
Divisors of 81440907327
- Number of divisors d(n): 64
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Complete list of divisors:
1 3 9 13 27 39 43 117 129 351 387 559 1161 1193 1677 3579 4523 5031 10737 13569 15093 15509 32211 40707 46527 51299 58799 122121 139581 153897 176397 194489 418743 461691 529191 583467 666887 1385073 1587573 1750401 2000661 2528357 5251203 5395939 6001983 7585071 16187817 18005949 22755213 48563451 68265639 70147207 145690353 210441621 232025377 631324863 696076131 1893974589 2088228393 3016329901 6264685179 9048989703 27146969109 81440907327
- Sum of all divisors σ(n): 133096803840
- Sum of proper divisors (its aliquot sum) s(n): 51655896513
- 81440907327 is a deficient number, because the sum of its proper divisors (51655896513) is less than itself. Its deficiency is 29785010814
Bases of 81440907327
- Binary: 10010111101100100000110100000001111112
- Hexadecimal: 0x12F641A03F
- Base-36: 11EVTA9R
Squares and roots of 81440907327
- 81440907327 squared (814409073272) is 6632621386245002284929
- 81440907327 cubed (814409073273) is 540166703652257503603805937774783
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The
square root of 81440907327 is 285378.5334025669 -
The
cube root of 81440907327 is 4334.5851070223
Scales and comparisons
How big is 81440907327?- 81,440,907,327 seconds is equal to 2,589 years, 29 weeks, 4 days, 2 hours, 15 minutes, 27 seconds.
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To count from 1 to 81,440,907,327 would take you about five thousand, one hundred seventy-nine 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 81440907327 cubic inches would be around 361.2 feet tall.
Recreational maths with 81440907327
- 81440907327 backwards is 72370904418
- The number of decimal digits it has is: 11
- The sum of 81440907327's digits is 45
- More coming soon!
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