21152664
21,152,664 is an even composite number composed of four prime numbers multiplied together.
21152664 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21152664:
23 × 38 × 13 × 31
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 13 × 31)See below for interesting mathematical facts about the number 21152664 from the Numbermatics database.
Names of 21152664
- Cardinal: 21152664 can be written as Twenty-one million, one hundred fifty-two thousand, six hundred sixty-four.
Scientific notation
- Scientific notation: 2.1152664 × 107
Factors of 21152664
Divisors of 21152664
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 6 8 9 12 13 18 24 26 27 31 36 39 52 54 62 72 78 81 93 104 108 117 124 156 162 186 216 234 243 248 279 312 324 351 372 403 468 486 558 648 702 729 744 806 837 936 972 1053 1116 1209 1404 1458 1612 1674 1944 2106 2187 2232 2418 2511 2808 2916 3159 3224 3348 3627 4212 4374 4836 5022 5832 6318 6561 6696 7254 7533 8424 8748 9477 9672 10044 10881 12636 13122 14508 15066 17496 18954 20088 21762 22599 25272 26244 28431 29016 30132 32643 37908 43524 45198 52488 56862 60264 65286 67797 75816 85293 87048 90396 97929 113724 130572 135594 170586 180792 195858 203391 227448 261144 271188 293787 341172 391716 406782 542376 587574 682344 783432 813564 881361 1175148 1627128 1762722 2350296 2644083 3525444 5288166 7050888 10576332 21152664
- Sum of all divisors σ(n): 66131520
- Sum of proper divisors (its aliquot sum) s(n): 44978856
- 21152664 is an abundant number, because the sum of its proper divisors (44978856) is greater than itself. Its abundance is 23826192
Bases of 21152664
- Binary: 10100001011000011100110002
- Hexadecimal: 0x142C398
- Base-36: CLDI0
Squares and roots of 21152664
- 21152664 squared (211526642) is 447435194296896
- 21152664 cubed (211526643) is 9464446326736957330944
-
The
square root of 21152664 is 4599.2025395713 -
The
cube root of 21152664 is 276.5593571031
Scales and comparisons
How big is 21152664?- 21,152,664 seconds is equal to 34 weeks, 6 days, 19 hours, 44 minutes, 24 seconds.
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To count from 1 to 21,152,664 would take you about three 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 21152664 cubic inches would be around 23 feet tall.
Recreational maths with 21152664
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The information we have on file for 21152664 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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