21397042872
21,397,042,872 is an even composite number composed of four prime numbers multiplied together.
21397042872 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21397042872:
23 × 32 × 373 × 5867
(2 × 2 × 2 × 3 × 3 × 37 × 37 × 37 × 5867)See below for interesting mathematical facts about the number 21397042872 from the Numbermatics database.
Names of 21397042872
- Cardinal: 21397042872 can be written as Twenty-one billion, three hundred ninety-seven million, forty-two thousand, eight hundred seventy-two.
Scientific notation
- Scientific notation: 2.1397042872 × 1010
Factors of 21397042872
Divisors of 21397042872
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 8 9 12 18 24 36 37 72 74 111 148 222 296 333 444 666 888 1332 1369 2664 2738 4107 5476 5867 8214 10952 11734 12321 16428 17601 23468 24642 32856 35202 46936 49284 50653 52803 70404 98568 101306 105606 140808 151959 202612 211212 217079 303918 405224 422424 434158 455877 607836 651237 868316 911754 1215672 1302474 1736632 1823508 1953711 2604948 3647016 3907422 5209896 7814844 8031923 15629688 16063846 24095769 32127692 48191538 64255384 72287307 96383076 144574614 192766152 289149228 297181151 578298456 594362302 891543453 1188724604 1783086906 2377449208 2674630359 3566173812 5349260718 7132347624 10698521436 21397042872
- Sum of all divisors σ(n): 59570175600
- Sum of proper divisors (its aliquot sum) s(n): 38173132728
- 21397042872 is an abundant number, because the sum of its proper divisors (38173132728) is greater than itself. Its abundance is 16776089856
Bases of 21397042872
- Binary: 100111110110101110011110110101110002
- Hexadecimal: 0x4FB5CF6B8
- Base-36: 9TV8VY0
Squares and roots of 21397042872
- 21397042872 squared (213970428722) is 457833443666206008384
- 21397042872 cubed (213970428723) is 9796281822361206818976439438848
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The
square root of 21397042872 is 146277.2807786637 -
The
cube root of 21397042872 is 2776.2032115577
Scales and comparisons
How big is 21397042872?- 21,397,042,872 seconds is equal to 680 years, 18 weeks, 4 days, 23 hours, 1 minute, 12 seconds.
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To count from 1 to 21,397,042,872 would take you about one thousand, three hundred sixty 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 21397042872 cubic inches would be around 231.4 feet tall.
Recreational maths with 21397042872
- 21397042872 backwards is 27824079312
- The number of decimal digits it has is: 11
- The sum of 21397042872's digits is 45
- More coming soon!
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The information we have on file for 21397042872 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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