21279379842
21,279,379,842 is an even composite number composed of six prime numbers multiplied together.
21279379842 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21279379842:
2 × 32 × 72 × 17 × 73 × 19441
(2 × 3 × 3 × 7 × 7 × 17 × 73 × 19441)See below for interesting mathematical facts about the number 21279379842 from the Numbermatics database.
Names of 21279379842
- Cardinal: 21279379842 can be written as Twenty-one billion, two hundred seventy-nine million, three hundred seventy-nine thousand, eight hundred forty-two.
Scientific notation
- Scientific notation: 2.1279379842 × 1010
Factors of 21279379842
Divisors of 21279379842
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 6 7 9 14 17 18 21 34 42 49 51 63 73 98 102 119 126 146 147 153 219 238 294 306 357 438 441 511 657 714 833 882 1022 1071 1241 1314 1533 1666 2142 2482 2499 3066 3577 3723 4599 4998 7154 7446 7497 8687 9198 10731 11169 14994 17374 19441 21462 22338 26061 32193 38882 52122 58323 60809 64386 78183 116646 121618 136087 156366 174969 182427 272174 330497 349938 364854 408261 547281 660994 816522 952609 991491 1094562 1224783 1419193 1905218 1982982 2313479 2449566 2838386 2857827 2974473 4257579 4626958 5715654 5948946 6940437 8515158 8573481 9934351 12772737 13880874 16194353 17146962 19868702 20821311 24126281 25545474 29803053 32388706 41642622 48252562 48583059 59606106 69540457 72378843 89409159 97166118 139080914 144757686 145749177 168883967 178818318 208621371 217136529 291498354 337767934 417242742 434273058 506651901 625864113 1013303802 1182187769 1251728226 1519955703 2364375538 3039911406 3546563307 7093126614 10639689921 21279379842
- Sum of all divisors σ(n): 57568461912
- Sum of proper divisors (its aliquot sum) s(n): 36289082070
- 21279379842 is an abundant number, because the sum of its proper divisors (36289082070) is greater than itself. Its abundance is 15009702228
Bases of 21279379842
- Binary: 100111101000101100110010001100000102
- Hexadecimal: 0x4F4599182
- Base-36: 9RX6YKI
Squares and roots of 21279379842
- 21279379842 squared (212793798422) is 452812006460115944964
- 21279379842 cubed (212793798423) is 9635558682482965016249723015688
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The
square root of 21279379842 is 145874.5345905173 -
The
cube root of 21279379842 is 2771.1050447293
Scales and comparisons
How big is 21279379842?- 21,279,379,842 seconds is equal to 676 years, 32 weeks, 1 day, 2 hours, 50 minutes, 42 seconds.
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To count from 1 to 21,279,379,842 would take you about one thousand, three hundred fifty-three years!
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 21279379842 cubic inches would be around 230.9 feet tall.
Recreational maths with 21279379842
- 21279379842 backwards is 24897397212
- The number of decimal digits it has is: 11
- The sum of 21279379842's digits is 54
- More coming soon!
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The information we have on file for 21279379842 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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