21318272
21,318,272 is an even composite number composed of four prime numbers multiplied together.
21318272 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21318272:
27 × 17 × 97 × 101
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 17 × 97 × 101)See below for interesting mathematical facts about the number 21318272 from the Numbermatics database.
Names of 21318272
- Cardinal: 21318272 can be written as Twenty-one million, three hundred eighteen thousand, two hundred seventy-two.
Scientific notation
- Scientific notation: 2.1318272 × 107
Factors of 21318272
Divisors of 21318272
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 8 16 17 32 34 64 68 97 101 128 136 194 202 272 388 404 544 776 808 1088 1552 1616 1649 1717 2176 3104 3232 3298 3434 6208 6464 6596 6868 9797 12416 12928 13192 13736 19594 26384 27472 39188 52768 54944 78376 105536 109888 156752 166549 211072 219776 313504 333098 627008 666196 1254016 1332392 2664784 5329568 10659136 21318272
- Sum of all divisors σ(n): 45881640
- Sum of proper divisors (its aliquot sum) s(n): 24563368
- 21318272 is an abundant number, because the sum of its proper divisors (24563368) is greater than itself. Its abundance is 3245096
Bases of 21318272
- Binary: 10100010101001010100000002
- Hexadecimal: 0x1454A80
- Base-36: COXA8
Squares and roots of 21318272
- 21318272 squared (213182722) is 454468721065984
- 21318272 cubed (213182723) is 9688487811176776859648
-
The
square root of 21318272 is 4617.1714284831 -
The
cube root of 21318272 is 277.2792259665
Scales and comparisons
How big is 21318272?- 21,318,272 seconds is equal to 35 weeks, 1 day, 17 hours, 44 minutes, 32 seconds.
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To count from 1 to 21,318,272 would take you about six days!
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 21318272 cubic inches would be around 23.1 feet tall.
Recreational maths with 21318272
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The information we have on file for 21318272 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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