21015148
21,015,148 is an even composite number composed of five prime numbers multiplied together.
21015148 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 21015148:
22 × 7 × 11 × 312 × 71
(2 × 2 × 7 × 11 × 31 × 31 × 71)See below for interesting mathematical facts about the number 21015148 from the Numbermatics database.
Names of 21015148
- Cardinal: 21015148 can be written as Twenty-one million, fifteen thousand, one hundred forty-eight.
Scientific notation
- Scientific notation: 2.1015148 × 107
Factors of 21015148
Divisors of 21015148
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 7 11 14 22 28 31 44 62 71 77 124 142 154 217 284 308 341 434 497 682 781 868 961 994 1364 1562 1922 1988 2201 2387 3124 3844 4402 4774 5467 6727 8804 9548 10571 10934 13454 15407 21142 21868 24211 26908 30814 42284 48422 61628 68231 73997 96844 136462 147994 169477 272924 295988 338954 477617 677908 750541 955234 1501082 1910468 3002164 5253787 10507574 21015148
- Sum of all divisors σ(n): 48045312
- Sum of proper divisors (its aliquot sum) s(n): 27030164
- 21015148 is an abundant number, because the sum of its proper divisors (27030164) is greater than itself. Its abundance is 6015016
Bases of 21015148
- Binary: 10100000010101010011011002
- Hexadecimal: 0x140AA6C
- Base-36: CIFE4
Squares and roots of 21015148
- 21015148 squared (210151482) is 441636445461904
- 21015148 cubed (210151483) is 9281055263575840921792
-
The
square root of 21015148 is 4584.2281793121 -
The
cube root of 21015148 is 275.9587384933
Scales and comparisons
How big is 21015148?- 21,015,148 seconds is equal to 34 weeks, 5 days, 5 hours, 32 minutes, 28 seconds.
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To count from 1 to 21,015,148 would take you about twenty 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 21015148 cubic inches would be around 23 feet tall.
Recreational maths with 21015148
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The information we have on file for 21015148 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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