81027972
81,027,972 is an even composite number composed of five prime numbers multiplied together.
81027972 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 81027972:
22 × 33 × 29 × 41 × 631
(2 × 2 × 3 × 3 × 3 × 29 × 41 × 631)See below for interesting mathematical facts about the number 81027972 from the Numbermatics database.
Names of 81027972
- Cardinal: 81027972 can be written as Eighty-one million, twenty-seven thousand, nine hundred seventy-two.
Scientific notation
- Scientific notation: 8.1027972 × 107
Factors of 81027972
Divisors of 81027972
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 9 12 18 27 29 36 41 54 58 82 87 108 116 123 164 174 246 261 348 369 492 522 631 738 783 1044 1107 1189 1262 1476 1566 1893 2214 2378 2524 3132 3567 3786 4428 4756 5679 7134 7572 10701 11358 14268 17037 18299 21402 22716 25871 32103 34074 36598 42804 51742 54897 64206 68148 73196 77613 103484 109794 128412 155226 164691 219588 232839 310452 329382 465678 494073 658764 698517 750259 931356 988146 1397034 1500518 1976292 2250777 2794068 3001036 4501554 6752331 9003108 13504662 20256993 27009324 40513986 81027972
- Sum of all divisors σ(n): 222969600
- Sum of proper divisors (its aliquot sum) s(n): 141941628
- 81027972 is an abundant number, because the sum of its proper divisors (141941628) is greater than itself. Its abundance is 60913656
Bases of 81027972
- Binary: 1001101010001100011100001002
- Hexadecimal: 0x4D46384
- Base-36: 1C8PL0
Squares and roots of 81027972
- 81027972 squared (810279722) is 6565532246432784
- 81027972 cubed (810279723) is 531991763029052721834048
-
The
square root of 81027972 is 9001.5538658611 -
The
cube root of 81027972 is 432.7246710453
Scales and comparisons
How big is 81027972?- 81,027,972 seconds is equal to 2 years, 29 weeks, 6 days, 19 hours, 46 minutes, 12 seconds.
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To count from 1 to 81,027,972 would take you about 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 81027972 cubic inches would be around 36.1 feet tall.
Recreational maths with 81027972
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The information we have on file for 81027972 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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