21429917925
21,429,917,925 is an odd composite number composed of six prime numbers multiplied together.
21429917925 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21429917925:
3 × 52 × 13 × 31 × 41 × 17293
(3 × 5 × 5 × 13 × 31 × 41 × 17293)See below for interesting mathematical facts about the number 21429917925 from the Numbermatics database.
Names of 21429917925
- Cardinal: 21429917925 can be written as Twenty-one billion, four hundred twenty-nine million, nine hundred seventeen thousand, nine hundred twenty-five.
Scientific notation
- Scientific notation: 2.1429917925 × 1010
Factors of 21429917925
Divisors of 21429917925
- Number of divisors d(n): 96
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Complete list of divisors:
1 3 5 13 15 25 31 39 41 65 75 93 123 155 195 205 325 403 465 533 615 775 975 1025 1209 1271 1599 2015 2325 2665 3075 3813 6045 6355 7995 10075 13325 16523 17293 19065 30225 31775 39975 49569 51879 82615 86465 95325 224809 247845 259395 413075 432325 536083 674427 709013 1124045 1239225 1296975 1608249 2127039 2680415 3372135 3545065 5620225 6969079 8041245 9217169 10635195 13402075 16860675 17725325 20907237 21979403 27651507 34845395 40206225 46085845 53175975 65938209 104536185 109897015 138257535 174226975 230429225 285732239 329691045 522680925 549485075 691287675 857196717 1428661195 1648455225 4285983585 7143305975 21429917925
- Sum of all divisors σ(n): 40350084096
- Sum of proper divisors (its aliquot sum) s(n): 18920166171
- 21429917925 is a deficient number, because the sum of its proper divisors (18920166171) is less than itself. Its deficiency is 2509751754
Bases of 21429917925
- Binary: 100111111010101001010011000111001012
- Hexadecimal: 0x4FD5298E5
- Base-36: 9UETIHX
Squares and roots of 21429917925
- 21429917925 squared (214299179252) is 459241382272236305625
- 21429917925 cubed (214299179253) is 9841505129857574035748965828125
-
The
square root of 21429917925 is 146389.6100309035 -
The
cube root of 21429917925 is 2777.6242977319
Scales and comparisons
How big is 21429917925?- 21,429,917,925 seconds is equal to 681 years, 21 weeks, 10 hours, 58 minutes, 45 seconds.
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To count from 1 to 21,429,917,925 would take you about one thousand, three hundred sixty-two 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 21429917925 cubic inches would be around 231.5 feet tall.
Recreational maths with 21429917925
- 21429917925 backwards is 52971992412
- The number of decimal digits it has is: 11
- The sum of 21429917925's digits is 51
- More coming soon!
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