21020790
21,020,790 is an even composite number composed of six prime numbers multiplied together.
21020790 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21020790:
2 × 3 × 5 × 7 × 31 × 3229
See below for interesting mathematical facts about the number 21020790 from the Numbermatics database.
Names of 21020790
- Cardinal: 21020790 can be written as Twenty-one million, twenty thousand, seven hundred ninety.
Scientific notation
- Scientific notation: 2.102079 × 107
Factors of 21020790
Divisors of 21020790
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 7 10 14 15 21 30 31 35 42 62 70 93 105 155 186 210 217 310 434 465 651 930 1085 1302 2170 3229 3255 6458 6510 9687 16145 19374 22603 32290 45206 48435 67809 96870 100099 113015 135618 200198 226030 300297 339045 500495 600594 678090 700693 1000990 1401386 1501485 2102079 3002970 3503465 4204158 7006930 10510395 21020790
- Sum of all divisors σ(n): 59535360
- Sum of proper divisors (its aliquot sum) s(n): 38514570
- 21020790 is an abundant number, because the sum of its proper divisors (38514570) is greater than itself. Its abundance is 17493780
Bases of 21020790
- Binary: 10100000011000000011101102
- Hexadecimal: 0x140C076
- Base-36: CIJQU
Squares and roots of 21020790
- 21020790 squared (210207902) is 441873612224100
- 21020790 cubed (210207903) is 9288532409104239039000
-
The
square root of 21020790 is 4584.8435087797 -
The
cube root of 21020790 is 275.9834321077
Scales and comparisons
How big is 21020790?- 21,020,790 seconds is equal to 34 weeks, 5 days, 7 hours, 6 minutes, 30 seconds.
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To count from 1 to 21,020,790 would take you about twenty-two 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 21020790 cubic inches would be around 23 feet tall.
Recreational maths with 21020790
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The information we have on file for 21020790 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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