21293820
21,293,820 is an even composite number composed of five prime numbers multiplied together.
21293820 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 21293820:
22 × 33 × 5 × 47 × 839
(2 × 2 × 3 × 3 × 3 × 5 × 47 × 839)See below for interesting mathematical facts about the number 21293820 from the Numbermatics database.
Names of 21293820
- Cardinal: 21293820 can be written as Twenty-one million, two hundred ninety-three thousand, eight hundred twenty.
Scientific notation
- Scientific notation: 2.129382 × 107
Factors of 21293820
Divisors of 21293820
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 47 54 60 90 94 108 135 141 180 188 235 270 282 423 470 540 564 705 839 846 940 1269 1410 1678 1692 2115 2517 2538 2820 3356 4195 4230 5034 5076 6345 7551 8390 8460 10068 12585 12690 15102 16780 22653 25170 25380 30204 37755 39433 45306 50340 75510 78866 90612 113265 118299 151020 157732 197165 226530 236598 354897 394330 453060 473196 591495 709794 788660 1064691 1182990 1419588 1774485 2129382 2365980 3548970 4258764 5323455 7097940 10646910 21293820
- Sum of all divisors σ(n): 67737600
- Sum of proper divisors (its aliquot sum) s(n): 46443780
- 21293820 is an abundant number, because the sum of its proper divisors (46443780) is greater than itself. Its abundance is 25149960
Bases of 21293820
- Binary: 10100010011101010111111002
- Hexadecimal: 0x144EAFC
- Base-36: COEF0
Squares and roots of 21293820
- 21293820 squared (212938202) is 453426770192400
- 21293820 cubed (212938203) is 9655188027658330968000
-
The
square root of 21293820 is 4614.5227272167 -
The
cube root of 21293820 is 277.1731725693
Scales and comparisons
How big is 21293820?- 21,293,820 seconds is equal to 35 weeks, 1 day, 10 hours, 57 minutes.
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To count from 1 to 21,293,820 would take you about five 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 21293820 cubic inches would be around 23.1 feet tall.
Recreational maths with 21293820
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The information we have on file for 21293820 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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