21064520
21,064,520 is an even composite number composed of five prime numbers multiplied together.
21064520 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21064520:
23 × 5 × 61 × 89 × 97
(2 × 2 × 2 × 5 × 61 × 89 × 97)See below for interesting mathematical facts about the number 21064520 from the Numbermatics database.
Names of 21064520
- Cardinal: 21064520 can be written as Twenty-one million, sixty-four thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.106452 × 107
Factors of 21064520
Divisors of 21064520
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 5 8 10 20 40 61 89 97 122 178 194 244 305 356 388 445 485 488 610 712 776 890 970 1220 1780 1940 2440 3560 3880 5429 5917 8633 10858 11834 17266 21716 23668 27145 29585 34532 43165 43432 47336 54290 59170 69064 86330 108580 118340 172660 217160 236680 345320 526613 1053226 2106452 2633065 4212904 5266130 10532260 21064520
- Sum of all divisors σ(n): 49215600
- Sum of proper divisors (its aliquot sum) s(n): 28151080
- 21064520 is an abundant number, because the sum of its proper divisors (28151080) is greater than itself. Its abundance is 7086560
Bases of 21064520
- Binary: 10100000101101011010010002
- Hexadecimal: 0x1416B48
- Base-36: CJHHK
Squares and roots of 21064520
- 21064520 squared (210645202) is 443714002830400
- 21064520 cubed (210645203) is 9346622486901017408000
-
The
square root of 21064520 is 4589.6100052183 -
The
cube root of 21064520 is 276.1746776347
Scales and comparisons
How big is 21064520?- 21,064,520 seconds is equal to 34 weeks, 5 days, 19 hours, 15 minutes, 20 seconds.
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To count from 1 to 21,064,520 would take you about sixteen 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 21064520 cubic inches would be around 23 feet tall.
Recreational maths with 21064520
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The information we have on file for 21064520 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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