21002490
21,002,490 is an even composite number composed of five prime numbers multiplied together.
21002490 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 21002490:
2 × 36 × 5 × 43 × 67
(2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 43 × 67)See below for interesting mathematical facts about the number 21002490 from the Numbermatics database.
Names of 21002490
- Cardinal: 21002490 can be written as Twenty-one million, two thousand, four hundred ninety.
Scientific notation
- Scientific notation: 2.100249 × 107
Factors of 21002490
Divisors of 21002490
- Number of divisors d(n): 112
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Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 43 45 54 67 81 86 90 129 134 135 162 201 215 243 258 270 335 387 402 405 430 486 603 645 670 729 774 810 1005 1161 1206 1215 1290 1458 1809 1935 2010 2322 2430 2881 3015 3483 3618 3645 3870 5427 5762 5805 6030 6966 7290 8643 9045 10449 10854 11610 14405 16281 17286 17415 18090 20898 25929 27135 28810 31347 32562 34830 43215 48843 51858 52245 54270 62694 77787 81405 86430 97686 104490 129645 155574 156735 162810 233361 244215 259290 313470 388935 466722 488430 700083 777870 1166805 1400166 2100249 2333610 3500415 4200498 7000830 10501245 21002490
- Sum of all divisors σ(n): 58864608
- Sum of proper divisors (its aliquot sum) s(n): 37862118
- 21002490 is an abundant number, because the sum of its proper divisors (37862118) is greater than itself. Its abundance is 16859628
Bases of 21002490
- Binary: 10100000001111000111110102
- Hexadecimal: 0x14078FA
- Base-36: CI5MI
Squares and roots of 21002490
- 21002490 squared (210024902) is 441104586200100
- 21002490 cubed (210024903) is 9264294660621738249000
-
The
square root of 21002490 is 4582.8473681763 -
The
cube root of 21002490 is 275.9033215265
Scales and comparisons
How big is 21002490?- 21,002,490 seconds is equal to 34 weeks, 5 days, 2 hours, 1 minute, 30 seconds.
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To count from 1 to 21,002,490 would take you about fifteen 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 21002490 cubic inches would be around 23 feet tall.
Recreational maths with 21002490
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The information we have on file for 21002490 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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