21297328
21,297,328 is an even composite number composed of five prime numbers multiplied together.
21297328 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21297328:
24 × 13 × 17 × 19 × 317
(2 × 2 × 2 × 2 × 13 × 17 × 19 × 317)See below for interesting mathematical facts about the number 21297328 from the Numbermatics database.
Names of 21297328
- Cardinal: 21297328 can be written as Twenty-one million, two hundred ninety-seven thousand, three hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1297328 × 107
Factors of 21297328
Divisors of 21297328
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 8 13 16 17 19 26 34 38 52 68 76 104 136 152 208 221 247 272 304 317 323 442 494 634 646 884 988 1268 1292 1768 1976 2536 2584 3536 3952 4121 4199 5072 5168 5389 6023 8242 8398 10778 12046 16484 16796 21556 24092 32968 33592 43112 48184 65936 67184 70057 78299 86224 96368 102391 140114 156598 204782 280228 313196 409564 560456 626392 819128 1120912 1252784 1331083 1638256 2662166 5324332 10648664 21297328
- Sum of all divisors σ(n): 49684320
- Sum of proper divisors (its aliquot sum) s(n): 28386992
- 21297328 is an abundant number, because the sum of its proper divisors (28386992) is greater than itself. Its abundance is 7089664
Bases of 21297328
- Binary: 10100010011111000101100002
- Hexadecimal: 0x144F8B0
- Base-36: COH4G
Squares and roots of 21297328
- 21297328 squared (212973282) is 453576179939584
- 21297328 cubed (212973283) is 9659960677160340631552
-
The
square root of 21297328 is 4614.9028158785 -
The
cube root of 21297328 is 277.1883924795
Scales and comparisons
How big is 21297328?- 21,297,328 seconds is equal to 35 weeks, 1 day, 11 hours, 55 minutes, 28 seconds.
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To count from 1 to 21,297,328 would take you about five 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 21297328 cubic inches would be around 23.1 feet tall.
Recreational maths with 21297328
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The information we have on file for 21297328 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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