21358989984
21,358,989,984 is an even composite number composed of five prime numbers multiplied together.
21358989984 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 21358989984:
25 × 3 × 29 × 1019 × 7529
(2 × 2 × 2 × 2 × 2 × 3 × 29 × 1019 × 7529)See below for interesting mathematical facts about the number 21358989984 from the Numbermatics database.
Names of 21358989984
- Cardinal: 21358989984 can be written as Twenty-one billion, three hundred fifty-eight million, nine hundred eighty-nine thousand, nine hundred eighty-four.
Scientific notation
- Scientific notation: 2.1358989984 × 1010
Factors of 21358989984
Divisors of 21358989984
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 8 12 16 24 29 32 48 58 87 96 116 174 232 348 464 696 928 1019 1392 2038 2784 3057 4076 6114 7529 8152 12228 15058 16304 22587 24456 29551 30116 32608 45174 48912 59102 60232 88653 90348 97824 118204 120464 177306 180696 218341 236408 240928 354612 361392 436682 472816 655023 709224 722784 873364 945632 1310046 1418448 1746728 2620092 2836896 3493456 5240184 6986912 7672051 10480368 15344102 20960736 23016153 30688204 46032306 61376408 92064612 122752816 184129224 222489479 245505632 368258448 444978958 667468437 736516896 889957916 1334936874 1779915832 2669873748 3559831664 5339747496 7119663328 10679494992 21358989984
- Sum of all divisors σ(n): 58065336000
- Sum of proper divisors (its aliquot sum) s(n): 36706346016
- 21358989984 is an abundant number, because the sum of its proper divisors (36706346016) is greater than itself. Its abundance is 15347356032
Bases of 21358989984
- Binary: 100111110010001100001010010101000002
- Hexadecimal: 0x4F91852A0
- Base-36: 9T8LA5C
Squares and roots of 21358989984
- 21358989984 squared (213589899842) is 456206453136612320256
- 21358989984 cubed (213589899843) is 9744109063181067932038904315904
-
The
square root of 21358989984 is 146147.1518162429 -
The
cube root of 21358989984 is 2774.5564849829
Scales and comparisons
How big is 21358989984?- 21,358,989,984 seconds is equal to 679 years, 7 weeks, 5 days, 12 hours, 46 minutes, 24 seconds.
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To count from 1 to 21,358,989,984 would take you about one thousand, three hundred fifty-eight 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 21358989984 cubic inches would be around 231.2 feet tall.
Recreational maths with 21358989984
- 21358989984 backwards is 48998985312
- The number of decimal digits it has is: 11
- The sum of 21358989984's digits is 66
- More coming soon!
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