21031020
21,031,020 is an even composite number composed of five prime numbers multiplied together.
21031020 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21031020:
22 × 32 × 5 × 31 × 3769
(2 × 2 × 3 × 3 × 5 × 31 × 3769)See below for interesting mathematical facts about the number 21031020 from the Numbermatics database.
Names of 21031020
- Cardinal: 21031020 can be written as Twenty-one million, thirty-one thousand and twenty.
Scientific notation
- Scientific notation: 2.103102 × 107
Factors of 21031020
Divisors of 21031020
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 30 31 36 45 60 62 90 93 124 155 180 186 279 310 372 465 558 620 930 1116 1395 1860 2790 3769 5580 7538 11307 15076 18845 22614 33921 37690 45228 56535 67842 75380 113070 116839 135684 169605 226140 233678 339210 350517 467356 584195 678420 701034 1051551 1168390 1402068 1752585 2103102 2336780 3505170 4206204 5257755 7010340 10515510 21031020
- Sum of all divisors σ(n): 65869440
- Sum of proper divisors (its aliquot sum) s(n): 44838420
- 21031020 is an abundant number, because the sum of its proper divisors (44838420) is greater than itself. Its abundance is 23807400
Bases of 21031020
- Binary: 10100000011101000011011002
- Hexadecimal: 0x140E86C
- Base-36: CIRN0
Squares and roots of 21031020
- 21031020 squared (210310202) is 442303802240400
- 21031020 cubed (210310203) is 9302100110993897208000
-
The
square root of 21031020 is 4585.9590054863 -
The
cube root of 21031020 is 276.0281949773
Scales and comparisons
How big is 21031020?- 21,031,020 seconds is equal to 34 weeks, 5 days, 9 hours, 57 minutes.
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To count from 1 to 21,031,020 would take you about 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 21031020 cubic inches would be around 23 feet tall.
Recreational maths with 21031020
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The information we have on file for 21031020 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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