21481404
21,481,404 is an even composite number composed of five prime numbers multiplied together.
21481404 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21481404:
22 × 3 × 73 × 17 × 307
(2 × 2 × 3 × 7 × 7 × 7 × 17 × 307)See below for interesting mathematical facts about the number 21481404 from the Numbermatics database.
Names of 21481404
- Cardinal: 21481404 can be written as Twenty-one million, four hundred eighty-one thousand, four hundred four.
Scientific notation
- Scientific notation: 2.1481404 × 107
Factors of 21481404
Divisors of 21481404
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 7 12 14 17 21 28 34 42 49 51 68 84 98 102 119 147 196 204 238 294 307 343 357 476 588 614 686 714 833 921 1029 1228 1372 1428 1666 1842 2058 2149 2499 3332 3684 4116 4298 4998 5219 5831 6447 8596 9996 10438 11662 12894 15043 15657 17493 20876 23324 25788 30086 31314 34986 36533 45129 60172 62628 69972 73066 90258 105301 109599 146132 180516 210602 219198 255731 315903 421204 438396 511462 631806 767193 1022924 1263612 1534386 1790117 3068772 3580234 5370351 7160468 10740702 21481404
- Sum of all divisors σ(n): 62092800
- Sum of proper divisors (its aliquot sum) s(n): 40611396
- 21481404 is an abundant number, because the sum of its proper divisors (40611396) is greater than itself. Its abundance is 19129992
Bases of 21481404
- Binary: 10100011111000111101111002
- Hexadecimal: 0x147C7BC
- Base-36: CSF5O
Squares and roots of 21481404
- 21481404 squared (214814042) is 461450717811216
- 21481404 cubed (214814043) is 9912609295392726627264
-
The
square root of 21481404 is 4634.8035557077 -
The
cube root of 21481404 is 277.9846962919
Scales and comparisons
How big is 21481404?- 21,481,404 seconds is equal to 35 weeks, 3 days, 15 hours, 3 minutes, 24 seconds.
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To count from 1 to 21,481,404 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 21481404 cubic inches would be around 23.2 feet tall.
Recreational maths with 21481404
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