21009729507
21,009,729,507 is an odd composite number composed of six prime numbers multiplied together.
21009729507 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21009729507:
3 × 13 × 41 × 127 × 307 × 337
See below for interesting mathematical facts about the number 21009729507 from the Numbermatics database.
Names of 21009729507
- Cardinal: 21009729507 can be written as Twenty-one billion, nine million, seven hundred twenty-nine thousand, five hundred seven.
Scientific notation
- Scientific notation: 2.1009729507 × 1010
Factors of 21009729507
Divisors of 21009729507
- Number of divisors d(n): 64
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Complete list of divisors:
1 3 13 39 41 123 127 307 337 381 533 921 1011 1599 1651 3991 4381 4953 5207 11973 12587 13143 13817 15621 37761 38989 41451 42799 67691 103459 116967 128397 163631 179621 203073 310377 490893 506857 538863 556387 1344967 1520571 1598549 1669161 1754759 4034901 4241819 4795647 5264277 12725457 13139293 20781137 22811867 39417879 55143647 62343411 68435601 165430941 170810809 512432427 538711013 1616133039 7003243169 21009729507
- Sum of all divisors σ(n): 31341133824
- Sum of proper divisors (its aliquot sum) s(n): 10331404317
- 21009729507 is a deficient number, because the sum of its proper divisors (10331404317) is less than itself. Its deficiency is 10678325190
Bases of 21009729507
- Binary: 100111001000100011100000111111000112
- Hexadecimal: 0x4E44707E3
- Base-36: 9NGNF1F
Squares and roots of 21009729507
- 21009729507 squared (210097295072) is 441408733957306463049
- 21009729507 cubed (210097295073) is 9273878102470334474962380486843
-
The
square root of 21009729507 is 144947.3335629187 -
The
cube root of 21009729507 is 2759.3501895179
Scales and comparisons
How big is 21009729507?- 21,009,729,507 seconds is equal to 668 years, 2 weeks, 2 days, 3 hours, 58 minutes, 27 seconds.
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To count from 1 to 21,009,729,507 would take you about one thousand, three hundred thirty-six years!
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 21009729507 cubic inches would be around 229.9 feet tall.
Recreational maths with 21009729507
- 21009729507 backwards is 70592790012
- The number of decimal digits it has is: 11
- The sum of 21009729507's digits is 42
- More coming soon!
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The information we have on file for 21009729507 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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