21385008
21,385,008 is an even composite number composed of four prime numbers multiplied together.
What does the number 21385008 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 60 divisors.
21385008 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 21385008:
24 × 32 × 97 × 1531
(2 × 2 × 2 × 2 × 3 × 3 × 97 × 1531)See below for interesting mathematical facts about the number 21385008 from the Numbermatics database.
Names of 21385008
- Cardinal: 21385008 can be written as Twenty-one million, three hundred eighty-five thousand and eight.
Scientific notation
- Scientific notation: 2.1385008 × 107
Factors of 21385008
Divisors of 21385008
- Number of divisors d(n): 60
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 36 48 72 97 144 194 291 388 582 776 873 1164 1531 1552 1746 2328 3062 3492 4593 4656 6124 6984 9186 12248 13779 13968 18372 24496 27558 36744 55116 73488 110232 148507 220464 297014 445521 594028 891042 1188056 1336563 1782084 2376112 2673126 3564168 5346252 7128336 10692504 21385008
- Sum of all divisors σ(n): 60504808
- Sum of proper divisors (its aliquot sum) s(n): 39119800
- 21385008 is an abundant number, because the sum of its proper divisors (39119800) is greater than itself. Its abundance is 17734792
Bases of 21385008
- Binary: 10100011001001111001100002
- Hexadecimal: 0x1464F30
- Base-36: CQCS0
Squares and roots of 21385008
- 21385008 squared (213850082) is 457318567160064
- 21385008 cubed (213850083) is 9779761217266505920512
-
The
square root of 21385008 is 4624.3927168873 -
The
cube root of 21385008 is 277.5682617559
Scales and comparisons
How big is 21385008?- 21,385,008 seconds is equal to 35 weeks, 2 days, 12 hours, 16 minutes, 48 seconds.
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To count from 1 to 21,385,008 would take you about six 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 21385008 cubic inches would be around 23.1 feet tall.
Recreational maths with 21385008
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The information we have on file for 21385008 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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