21249384
21,249,384 is an even composite number composed of four prime numbers multiplied together.
21249384 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21249384:
23 × 3 × 134 × 31
(2 × 2 × 2 × 3 × 13 × 13 × 13 × 13 × 31)See below for interesting mathematical facts about the number 21249384 from the Numbermatics database.
Names of 21249384
- Cardinal: 21249384 can be written as Twenty-one million, two hundred forty-nine thousand, three hundred eighty-four.
Scientific notation
- Scientific notation: 2.1249384 × 107
Factors of 21249384
Divisors of 21249384
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 4 6 8 12 13 24 26 31 39 52 62 78 93 104 124 156 169 186 248 312 338 372 403 507 676 744 806 1014 1209 1352 1612 2028 2197 2418 3224 4056 4394 4836 5239 6591 8788 9672 10478 13182 15717 17576 20956 26364 28561 31434 41912 52728 57122 62868 68107 85683 114244 125736 136214 171366 204321 228488 272428 342732 408642 544856 685464 817284 885391 1634568 1770782 2656173 3541564 5312346 7083128 10624692 21249384
- Sum of all divisors σ(n): 59406720
- Sum of proper divisors (its aliquot sum) s(n): 38157336
- 21249384 is an abundant number, because the sum of its proper divisors (38157336) is greater than itself. Its abundance is 16907952
Bases of 21249384
- Binary: 10100010000111101011010002
- Hexadecimal: 0x1443D68
- Base-36: CNG4O
Squares and roots of 21249384
- 21249384 squared (212493842) is 451536320379456
- 21249384 cubed (212493843) is 9594868661690086255104
-
The
square root of 21249384 is 4609.7054135813 -
The
cube root of 21249384 is 276.9802363967
Scales and comparisons
How big is 21249384?- 21,249,384 seconds is equal to 35 weeks, 22 hours, 36 minutes, 24 seconds.
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To count from 1 to 21,249,384 would take you about four 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 21249384 cubic inches would be around 23.1 feet tall.
Recreational maths with 21249384
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The information we have on file for 21249384 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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