21049910
21,049,910 is an even composite number composed of five prime numbers multiplied together.
21049910 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 21049910:
2 × 5 × 73 × 17 × 192
(2 × 5 × 7 × 7 × 7 × 17 × 19 × 19)See below for interesting mathematical facts about the number 21049910 from the Numbermatics database.
Names of 21049910
- Cardinal: 21049910 can be written as Twenty-one million, forty-nine thousand, nine hundred ten.
Scientific notation
- Scientific notation: 2.104991 × 107
Factors of 21049910
Divisors of 21049910
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 5 7 10 14 17 19 34 35 38 49 70 85 95 98 119 133 170 190 238 245 266 323 343 361 490 595 646 665 686 722 833 931 1190 1330 1615 1666 1715 1805 1862 2261 2527 3230 3430 3610 4165 4522 4655 5054 5831 6137 6517 8330 9310 11305 11662 12274 12635 13034 15827 17689 22610 25270 29155 30685 31654 32585 35378 42959 58310 61370 65170 79135 85918 88445 110789 123823 158270 176890 214795 221578 247646 300713 429590 553945 601426 619115 1107890 1238230 1503565 2104991 3007130 4209982 10524955 21049910
- Sum of all divisors σ(n): 49377600
- Sum of proper divisors (its aliquot sum) s(n): 28327690
- 21049910 is an abundant number, because the sum of its proper divisors (28327690) is greater than itself. Its abundance is 7277780
Bases of 21049910
- Binary: 10100000100110010001101102
- Hexadecimal: 0x1413236
- Base-36: CJ67Q
Squares and roots of 21049910
- 21049910 squared (210499102) is 443098711008100
- 21049910 cubed (210499103) is 9327187987836514271000
-
The
square root of 21049910 is 4588.0180906353 -
The
cube root of 21049910 is 276.1108128161
Scales and comparisons
How big is 21049910?- 21,049,910 seconds is equal to 34 weeks, 5 days, 15 hours, 11 minutes, 50 seconds.
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To count from 1 to 21,049,910 would take you about ten 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 21049910 cubic inches would be around 23 feet tall.
Recreational maths with 21049910
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