21027920
21,027,920 is an even composite number composed of five prime numbers multiplied together.
21027920 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 21027920:
24 × 5 × 31 × 61 × 139
(2 × 2 × 2 × 2 × 5 × 31 × 61 × 139)See below for interesting mathematical facts about the number 21027920 from the Numbermatics database.
Names of 21027920
- Cardinal: 21027920 can be written as Twenty-one million, twenty-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.102792 × 107
Factors of 21027920
Divisors of 21027920
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 16 20 31 40 61 62 80 122 124 139 155 244 248 278 305 310 488 496 556 610 620 695 976 1112 1220 1240 1390 1891 2224 2440 2480 2780 3782 4309 4880 5560 7564 8479 8618 9455 11120 15128 16958 17236 18910 21545 30256 33916 34472 37820 42395 43090 67832 68944 75640 84790 86180 135664 151280 169580 172360 262849 339160 344720 525698 678320 1051396 1314245 2102792 2628490 4205584 5256980 10513960 21027920
- Sum of all divisors σ(n): 51663360
- Sum of proper divisors (its aliquot sum) s(n): 30635440
- 21027920 is an abundant number, because the sum of its proper divisors (30635440) is greater than itself. Its abundance is 9607520
Bases of 21027920
- Binary: 10100000011011100010100002
- Hexadecimal: 0x140DC50
- Base-36: CIP8W
Squares and roots of 21027920
- 21027920 squared (210279202) is 442173419526400
- 21027920 cubed (210279203) is 9297987291927577088000
-
The
square root of 21027920 is 4585.6210048369 -
The
cube root of 21027920 is 276.0146320045
Scales and comparisons
How big is 21027920?- 21,027,920 seconds is equal to 34 weeks, 5 days, 9 hours, 5 minutes, 20 seconds.
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To count from 1 to 21,027,920 would take you about thirty-eight minutes!
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 21027920 cubic inches would be around 23 feet tall.
Recreational maths with 21027920
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The information we have on file for 21027920 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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