21639072
21,639,072 is an even composite number composed of five prime numbers multiplied together.
21639072 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21639072:
25 × 3 × 7 × 13 × 2477
(2 × 2 × 2 × 2 × 2 × 3 × 7 × 13 × 2477)See below for interesting mathematical facts about the number 21639072 from the Numbermatics database.
Names of 21639072
- Cardinal: 21639072 can be written as Twenty-one million, six hundred thirty-nine thousand and seventy-two.
Scientific notation
- Scientific notation: 2.1639072 × 107
Factors of 21639072
Divisors of 21639072
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 42 48 52 56 78 84 91 96 104 112 156 168 182 208 224 273 312 336 364 416 546 624 672 728 1092 1248 1456 2184 2477 2912 4368 4954 7431 8736 9908 14862 17339 19816 29724 32201 34678 39632 52017 59448 64402 69356 79264 96603 104034 118896 128804 138712 193206 208068 225407 237792 257608 277424 386412 416136 450814 515216 554848 676221 772824 832272 901628 1030432 1352442 1545648 1664544 1803256 2704884 3091296 3606512 5409768 7213024 10819536 21639072
- Sum of all divisors σ(n): 69939072
- Sum of proper divisors (its aliquot sum) s(n): 48300000
- 21639072 is an abundant number, because the sum of its proper divisors (48300000) is greater than itself. Its abundance is 26660928
Bases of 21639072
- Binary: 10100101000101111101000002
- Hexadecimal: 0x14A2FA0
- Base-36: CVSTC
Squares and roots of 21639072
- 21639072 squared (216390722) is 468249437021184
- 21639072 cubed (216390723) is 10132483281660866101248
-
The
square root of 21639072 is 4651.7815941853 -
The
cube root of 21639072 is 278.6631512369
Scales and comparisons
How big is 21639072?- 21,639,072 seconds is equal to 35 weeks, 5 days, 10 hours, 51 minutes, 12 seconds.
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To count from 1 to 21,639,072 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 21639072 cubic inches would be around 23.2 feet tall.
Recreational maths with 21639072
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The information we have on file for 21639072 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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