21357387216
21,357,387,216 is an even composite number composed of four prime numbers multiplied together.
21357387216 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 21357387216:
24 × 32 × 11 × 13483199
(2 × 2 × 2 × 2 × 3 × 3 × 11 × 13483199)See below for interesting mathematical facts about the number 21357387216 from the Numbermatics database.
Names of 21357387216
- Cardinal: 21357387216 can be written as Twenty-one billion, three hundred fifty-seven million, three hundred eighty-seven thousand, two hundred sixteen.
Scientific notation
- Scientific notation: 2.1357387216 × 1010
Factors of 21357387216
Divisors of 21357387216
- Number of divisors d(n): 60
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Complete list of divisors:
1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 44 48 66 72 88 99 132 144 176 198 264 396 528 792 1584 13483199 26966398 40449597 53932796 80899194 107865592 121348791 148315189 161798388 215731184 242697582 296630378 323596776 444945567 485395164 593260756 647193552 889891134 970790328 1186521512 1334836701 1779782268 1941580656 2373043024 2669673402 3559564536 5339346804 7119129072 10678693608 21357387216
- Sum of all divisors σ(n): 65204755200
- Sum of proper divisors (its aliquot sum) s(n): 43847367984
- 21357387216 is an abundant number, because the sum of its proper divisors (43847367984) is greater than itself. Its abundance is 22489980768
Bases of 21357387216
- Binary: 100111110001111111111011101110100002
- Hexadecimal: 0x4F8FFDDD0
- Base-36: 9T7MXG0
Squares and roots of 21357387216
- 21357387216 squared (213573872162) is 456137988694160230656
- 21357387216 cubed (213573872163) is 9741915648468610244068065693696
-
The
square root of 21357387216 is 146141.6683085287 -
The
cube root of 21357387216 is 2774.4870828001
Scales and comparisons
How big is 21357387216?- 21,357,387,216 seconds is equal to 679 years, 5 weeks, 23 hours, 33 minutes, 36 seconds.
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To count from 1 to 21,357,387,216 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 21357387216 cubic inches would be around 231.2 feet tall.
Recreational maths with 21357387216
- 21357387216 backwards is 61278375312
- The number of decimal digits it has is: 11
- The sum of 21357387216's digits is 45
- More coming soon!
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The information we have on file for 21357387216 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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