21425625
21,425,625 is an odd composite number composed of four prime numbers multiplied together.
21425625 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 21425625:
32 × 54 × 13 × 293
(3 × 3 × 5 × 5 × 5 × 5 × 13 × 293)See below for interesting mathematical facts about the number 21425625 from the Numbermatics database.
Names of 21425625
- Cardinal: 21425625 can be written as Twenty-one million, four hundred twenty-five thousand, six hundred twenty-five.
Scientific notation
- Scientific notation: 2.1425625 × 107
Factors of 21425625
Divisors of 21425625
- Number of divisors d(n): 60
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Complete list of divisors:
1 3 5 9 13 15 25 39 45 65 75 117 125 195 225 293 325 375 585 625 879 975 1125 1465 1625 1875 2637 2925 3809 4395 4875 5625 7325 8125 11427 13185 14625 19045 21975 24375 34281 36625 57135 65925 73125 95225 109875 171405 183125 285675 329625 476125 549375 857025 1428375 1648125 2380625 4285125 7141875 21425625
- Sum of all divisors σ(n): 41789748
- Sum of proper divisors (its aliquot sum) s(n): 20364123
- 21425625 is a deficient number, because the sum of its proper divisors (20364123) is less than itself. Its deficiency is 1061502
Bases of 21425625
- Binary: 10100011011101101110110012
- Hexadecimal: 0x146EDD9
- Base-36: CR849
Squares and roots of 21425625
- 21425625 squared (214256252) is 459057406640625
- 21425625 cubed (214256253) is 9835591848154541015625
-
The
square root of 21425625 is 4628.7822372629 -
The
cube root of 21425625 is 277.7438810489
Scales and comparisons
How big is 21425625?- 21,425,625 seconds is equal to 35 weeks, 2 days, 23 hours, 33 minutes, 45 seconds.
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To count from 1 to 21,425,625 would take you about twenty-three 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 21425625 cubic inches would be around 23.1 feet tall.
Recreational maths with 21425625
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