21291072
21,291,072 is an even composite number composed of five prime numbers multiplied together.
21291072 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 21291072:
26 × 3 × 11 × 17 × 593
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 11 × 17 × 593)See below for interesting mathematical facts about the number 21291072 from the Numbermatics database.
Names of 21291072
- Cardinal: 21291072 can be written as Twenty-one million, two hundred ninety-one thousand and seventy-two.
Scientific notation
- Scientific notation: 2.1291072 × 107
Factors of 21291072
Divisors of 21291072
- Number of divisors d(n): 112
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Complete list of divisors:
1 2 3 4 6 8 11 12 16 17 22 24 32 33 34 44 48 51 64 66 68 88 96 102 132 136 176 187 192 204 264 272 352 374 408 528 544 561 593 704 748 816 1056 1088 1122 1186 1496 1632 1779 2112 2244 2372 2992 3264 3558 4488 4744 5984 6523 7116 8976 9488 10081 11968 13046 14232 17952 18976 19569 20162 26092 28464 30243 35904 37952 39138 40324 52184 56928 60486 78276 80648 104368 110891 113856 120972 156552 161296 208736 221782 241944 313104 322592 332673 417472 443564 483888 626208 645184 665346 887128 967776 1252416 1330692 1774256 1935552 2661384 3548512 5322768 7097024 10645536 21291072
- Sum of all divisors σ(n): 65178432
- Sum of proper divisors (its aliquot sum) s(n): 43887360
- 21291072 is an abundant number, because the sum of its proper divisors (43887360) is greater than itself. Its abundance is 22596288
Bases of 21291072
- Binary: 10100010011100000010000002
- Hexadecimal: 0x144E040
- Base-36: COCAO
Squares and roots of 21291072
- 21291072 squared (212910722) is 453309746909184
- 21291072 cubed (212910723) is 9651450459745214005248
-
The
square root of 21291072 is 4614.2249620061 -
The
cube root of 21291072 is 277.1612488491
Scales and comparisons
How big is 21291072?- 21,291,072 seconds is equal to 35 weeks, 1 day, 10 hours, 11 minutes, 12 seconds.
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To count from 1 to 21,291,072 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 21291072 cubic inches would be around 23.1 feet tall.
Recreational maths with 21291072
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The information we have on file for 21291072 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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