21942144
21,942,144 is an even composite number composed of four prime numbers multiplied together.
21942144 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21942144:
27 × 33 × 7 × 907
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 7 × 907)See below for interesting mathematical facts about the number 21942144 from the Numbermatics database.
Names of 21942144
- Cardinal: 21942144 can be written as Twenty-one million, nine hundred forty-two thousand, one hundred forty-four.
Scientific notation
- Scientific notation: 2.1942144 × 107
Factors of 21942144
Divisors of 21942144
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 84 96 108 112 126 128 144 168 189 192 216 224 252 288 336 378 384 432 448 504 576 672 756 864 896 907 1008 1152 1344 1512 1728 1814 2016 2688 2721 3024 3456 3628 4032 5442 6048 6349 7256 8064 8163 10884 12096 12698 14512 16326 19047 21768 24192 24489 25396 29024 32652 38094 43536 48978 50792 57141 58048 65304 76188 87072 97956 101584 114282 116096 130608 152376 171423 174144 195912 203168 228564 261216 304752 342846 348288 391824 406336 457128 522432 609504 685692 783648 812672 914256 1044864 1219008 1371384 1567296 1828512 2438016 2742768 3134592 3657024 5485536 7314048 10971072 21942144
- Sum of all divisors σ(n): 74092800
- Sum of proper divisors (its aliquot sum) s(n): 52150656
- 21942144 is an abundant number, because the sum of its proper divisors (52150656) is greater than itself. Its abundance is 30208512
Bases of 21942144
- Binary: 10100111011001111100000002
- Hexadecimal: 0x14ECF80
- Base-36: D2AO0
Squares and roots of 21942144
- 21942144 squared (219421442) is 481457683316736
- 21942144 cubed (219421443) is 10564213817242218921984
-
The
square root of 21942144 is 4684.2442293287 -
The
cube root of 21942144 is 279.9580889651
Scales and comparisons
How big is 21942144?- 21,942,144 seconds is equal to 36 weeks, 1 day, 23 hours, 2 minutes, 24 seconds.
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To count from 1 to 21,942,144 would take you about two weeks!
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 21942144 cubic inches would be around 23.3 feet tall.
Recreational maths with 21942144
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The information we have on file for 21942144 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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