21091224
21,091,224 is an even composite number composed of six prime numbers multiplied together.
21091224 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21091224:
23 × 3 × 7 × 11 × 101 × 113
(2 × 2 × 2 × 3 × 7 × 11 × 101 × 113)See below for interesting mathematical facts about the number 21091224 from the Numbermatics database.
Names of 21091224
- Cardinal: 21091224 can be written as Twenty-one million, ninety-one thousand, two hundred twenty-four.
Scientific notation
- Scientific notation: 2.1091224 × 107
Factors of 21091224
Divisors of 21091224
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 6 7 8 11 12 14 21 22 24 28 33 42 44 56 66 77 84 88 101 113 132 154 168 202 226 231 264 303 308 339 404 452 462 606 616 678 707 791 808 904 924 1111 1212 1243 1356 1414 1582 1848 2121 2222 2373 2424 2486 2712 2828 3164 3333 3729 4242 4444 4746 4972 5656 6328 6666 7458 7777 8484 8701 8888 9492 9944 11413 13332 14916 15554 16968 17402 18984 22826 23331 26103 26664 29832 31108 34239 34804 45652 46662 52206 62216 68478 69608 79891 91304 93324 104412 125543 136956 159782 186648 208824 239673 251086 273912 319564 376629 479346 502172 639128 753258 878801 958692 1004344 1506516 1757602 1917384 2636403 3013032 3515204 5272806 7030408 10545612 21091224
- Sum of all divisors σ(n): 66977280
- Sum of proper divisors (its aliquot sum) s(n): 45886056
- 21091224 is an abundant number, because the sum of its proper divisors (45886056) is greater than itself. Its abundance is 24794832
Bases of 21091224
- Binary: 10100000111010011100110002
- Hexadecimal: 0x141D398
- Base-36: CK23C
Squares and roots of 21091224
- 21091224 squared (210912242) is 444839729818176
- 21091224 cubed (210912243) is 9382214385694629287424
-
The
square root of 21091224 is 4592.5182634365 -
The
cube root of 21091224 is 276.2913327861
Scales and comparisons
How big is 21091224?- 21,091,224 seconds is equal to 34 weeks, 6 days, 2 hours, 40 minutes, 24 seconds.
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To count from 1 to 21,091,224 would take you about two 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 21091224 cubic inches would be around 23 feet tall.
Recreational maths with 21091224
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The information we have on file for 21091224 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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