21072912
21,072,912 is an even composite number composed of five prime numbers multiplied together.
21072912 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21072912:
24 × 3 × 7 × 59 × 1063
(2 × 2 × 2 × 2 × 3 × 7 × 59 × 1063)See below for interesting mathematical facts about the number 21072912 from the Numbermatics database.
Names of 21072912
- Cardinal: 21072912 can be written as Twenty-one million, seventy-two thousand, nine hundred twelve.
Scientific notation
- Scientific notation: 2.1072912 × 107
Factors of 21072912
Divisors of 21072912
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 59 84 112 118 168 177 236 336 354 413 472 708 826 944 1063 1239 1416 1652 2126 2478 2832 3189 3304 4252 4956 6378 6608 7441 8504 9912 12756 14882 17008 19824 22323 25512 29764 44646 51024 59528 62717 89292 119056 125434 178584 188151 250868 357168 376302 439019 501736 752604 878038 1003472 1317057 1505208 1756076 2634114 3010416 3512152 5268228 7024304 10536456 21072912
- Sum of all divisors σ(n): 63329280
- Sum of proper divisors (its aliquot sum) s(n): 42256368
- 21072912 is an abundant number, because the sum of its proper divisors (42256368) is greater than itself. Its abundance is 21183456
Bases of 21072912
- Binary: 10100000110001100000100002
- Hexadecimal: 0x1418C10
- Base-36: CJNYO
Squares and roots of 21072912
- 21072912 squared (210729122) is 444067620159744
- 21072912 cubed (210729123) is 9357797881675711254528
-
The
square root of 21072912 is 4590.5241530789 -
The
cube root of 21072912 is 276.2113483047
Scales and comparisons
How big is 21072912?- 21,072,912 seconds is equal to 34 weeks, 5 days, 21 hours, 35 minutes, 12 seconds.
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To count from 1 to 21,072,912 would take you about twenty hours!
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 21072912 cubic inches would be around 23 feet tall.
Recreational maths with 21072912
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The information we have on file for 21072912 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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