21025290
21,025,290 is an even composite number composed of six prime numbers multiplied together.
21025290 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21025290:
2 × 3 × 5 × 11 × 133 × 29
(2 × 3 × 5 × 11 × 13 × 13 × 13 × 29)See below for interesting mathematical facts about the number 21025290 from the Numbermatics database.
Names of 21025290
- Cardinal: 21025290 can be written as Twenty-one million, twenty-five thousand, two hundred ninety.
Scientific notation
- Scientific notation: 2.102529 × 107
Factors of 21025290
Divisors of 21025290
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 10 11 13 15 22 26 29 30 33 39 55 58 65 66 78 87 110 130 143 145 165 169 174 195 286 290 319 330 338 377 390 429 435 507 638 715 754 845 858 870 957 1014 1131 1430 1595 1690 1859 1885 1914 2145 2197 2262 2535 3190 3718 3770 4147 4290 4394 4785 4901 5070 5577 5655 6591 8294 9295 9570 9802 10985 11154 11310 12441 13182 14703 18590 20735 21970 24167 24505 24882 27885 29406 32955 41470 48334 49010 53911 55770 62205 63713 65910 72501 73515 107822 120835 124410 127426 145002 147030 161733 191139 241670 269555 318565 323466 362505 382278 539110 637130 700843 725010 808665 955695 1401686 1617330 1911390 2102529 3504215 4205058 7008430 10512645 21025290
- Sum of all divisors σ(n): 61689600
- Sum of proper divisors (its aliquot sum) s(n): 40664310
- 21025290 is an abundant number, because the sum of its proper divisors (40664310) is greater than itself. Its abundance is 19639020
Bases of 21025290
- Binary: 10100000011010010000010102
- Hexadecimal: 0x140D20A
- Base-36: CIN7U
Squares and roots of 21025290
- 21025290 squared (210252902) is 442062819584100
- 21025290 cubed (210252903) is 9294498979973381889000
-
The
square root of 21025290 is 4585.3342299117 -
The
cube root of 21025290 is 276.0031243083
Scales and comparisons
How big is 21025290?- 21,025,290 seconds is equal to 34 weeks, 5 days, 8 hours, 21 minutes, 30 seconds.
-
To count from 1 to 21,025,290 would take you about thirty-two minutes!
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 21025290 cubic inches would be around 23 feet tall.
Recreational maths with 21025290
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The information we have on file for 21025290 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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