21372390
21,372,390 is an even composite number composed of five prime numbers multiplied together.
21372390 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 21372390:
2 × 33 × 5 × 13 × 6089
(2 × 3 × 3 × 3 × 5 × 13 × 6089)See below for interesting mathematical facts about the number 21372390 from the Numbermatics database.
Names of 21372390
- Cardinal: 21372390 can be written as Twenty-one million, three hundred seventy-two thousand, three hundred ninety.
Scientific notation
- Scientific notation: 2.137239 × 107
Factors of 21372390
Divisors of 21372390
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 195 234 270 351 390 585 702 1170 1755 3510 6089 12178 18267 30445 36534 54801 60890 79157 91335 109602 158314 164403 182670 237471 274005 328806 395785 474942 548010 712413 791570 822015 1187355 1424826 1644030 2137239 2374710 3562065 4274478 7124130 10686195 21372390
- Sum of all divisors σ(n): 61387200
- Sum of proper divisors (its aliquot sum) s(n): 40014810
- 21372390 is an abundant number, because the sum of its proper divisors (40014810) is greater than itself. Its abundance is 18642420
Bases of 21372390
- Binary: 10100011000011101111001102
- Hexadecimal: 0x1461DE6
- Base-36: CQ31I
Squares and roots of 21372390
- 21372390 squared (213723902) is 456779054312100
- 21372390 cubed (213723903) is 9762460092589382919000
-
The
square root of 21372390 is 4623.0282283369 -
The
cube root of 21372390 is 277.5136589333
Scales and comparisons
How big is 21372390?- 21,372,390 seconds is equal to 35 weeks, 2 days, 8 hours, 46 minutes, 30 seconds.
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To count from 1 to 21,372,390 would take you about nine 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 21372390 cubic inches would be around 23.1 feet tall.
Recreational maths with 21372390
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The information we have on file for 21372390 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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