21081960
21,081,960 is an even composite number composed of five prime numbers multiplied together.
21081960 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 21081960:
23 × 32 × 5 × 157 × 373
(2 × 2 × 2 × 3 × 3 × 5 × 157 × 373)See below for interesting mathematical facts about the number 21081960 from the Numbermatics database.
Names of 21081960
- Cardinal: 21081960 can be written as Twenty-one million, eighty-one thousand, nine hundred sixty.
Scientific notation
- Scientific notation: 2.108196 × 107
Factors of 21081960
Divisors of 21081960
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 157 180 314 360 373 471 628 746 785 942 1119 1256 1413 1492 1570 1865 1884 2238 2355 2826 2984 3140 3357 3730 3768 4476 4710 5595 5652 6280 6714 7065 7460 8952 9420 11190 11304 13428 14130 14920 16785 18840 22380 26856 28260 33570 44760 56520 58561 67140 117122 134280 175683 234244 292805 351366 468488 527049 585610 702732 878415 1054098 1171220 1405464 1756830 2108196 2342440 2635245 3513660 4216392 5270490 7027320 10540980 21081960
- Sum of all divisors σ(n): 69137640
- Sum of proper divisors (its aliquot sum) s(n): 48055680
- 21081960 is an abundant number, because the sum of its proper divisors (48055680) is greater than itself. Its abundance is 26973720
Bases of 21081960
- Binary: 10100000110101111011010002
- Hexadecimal: 0x141AF68
- Base-36: CJUY0
Squares and roots of 21081960
- 21081960 squared (210819602) is 444449037441600
- 21081960 cubed (210819603) is 9369856829382313536000
-
The
square root of 21081960 is 4591.5095556909 -
The
cube root of 21081960 is 276.2508746039
Scales and comparisons
How big is 21081960?- 21,081,960 seconds is equal to 34 weeks, 6 days, 6 minutes.
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To count from 1 to 21,081,960 would take you about two 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 21081960 cubic inches would be around 23 feet tall.
Recreational maths with 21081960
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The information we have on file for 21081960 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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