21313864
21,313,864 is an even composite number composed of five prime numbers multiplied together.
21313864 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21313864:
23 × 11 × 13 × 31 × 601
(2 × 2 × 2 × 11 × 13 × 31 × 601)See below for interesting mathematical facts about the number 21313864 from the Numbermatics database.
Names of 21313864
- Cardinal: 21313864 can be written as Twenty-one million, three hundred thirteen thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 2.1313864 × 107
Factors of 21313864
Divisors of 21313864
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 8 11 13 22 26 31 44 52 62 88 104 124 143 248 286 341 403 572 601 682 806 1144 1202 1364 1612 2404 2728 3224 4433 4808 6611 7813 8866 13222 15626 17732 18631 26444 31252 35464 37262 52888 62504 74524 85943 149048 171886 204941 242203 343772 409882 484406 687544 819764 968812 1639528 1937624 2664233 5328466 10656932 21313864
- Sum of all divisors σ(n): 48545280
- Sum of proper divisors (its aliquot sum) s(n): 27231416
- 21313864 is an abundant number, because the sum of its proper divisors (27231416) is greater than itself. Its abundance is 5917552
Bases of 21313864
- Binary: 10100010100111001010010002
- Hexadecimal: 0x1453948
- Base-36: COTVS
Squares and roots of 21313864
- 21313864 squared (213138642) is 454280798610496
- 21313864 cubed (213138643) is 9682479159395500716544
-
The
square root of 21313864 is 4616.6940552737 -
The
cube root of 21313864 is 277.2601135499
Scales and comparisons
How big is 21313864?- 21,313,864 seconds is equal to 35 weeks, 1 day, 16 hours, 31 minutes, 4 seconds.
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To count from 1 to 21,313,864 would take you about six days!
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 21313864 cubic inches would be around 23.1 feet tall.
Recreational maths with 21313864
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The information we have on file for 21313864 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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