21209816988
21,209,816,988 is an even composite number composed of five prime numbers multiplied together.
21209816988 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 21209816988:
22 × 32 × 232 × 101 × 11027
(2 × 2 × 3 × 3 × 23 × 23 × 101 × 11027)See below for interesting mathematical facts about the number 21209816988 from the Numbermatics database.
Names of 21209816988
- Cardinal: 21209816988 can be written as Twenty-one billion, two hundred nine million, eight hundred sixteen thousand, nine hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1209816988 × 1010
Factors of 21209816988
Divisors of 21209816988
- Number of divisors d(n): 108
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Complete list of divisors:
1 2 3 4 6 9 12 18 23 36 46 69 92 101 138 202 207 276 303 404 414 529 606 828 909 1058 1212 1587 1818 2116 2323 3174 3636 4646 4761 6348 6969 9292 9522 11027 13938 19044 20907 22054 27876 33081 41814 44108 53429 66162 83628 99243 106858 132324 160287 198486 213716 253621 320574 396972 480861 507242 641148 760863 961722 1014484 1113727 1521726 1923444 2227454 2282589 3043452 3341181 4454908 4565178 5833283 6682362 9130356 10023543 11666566 13364724 17499849 20047086 23333132 25615721 34999698 40094172 51231442 52499547 69999396 76847163 102462884 104999094 153694326 209998188 230541489 307388652 461082978 589161583 922165956 1178323166 1767484749 2356646332 3534969498 5302454247 7069938996 10604908494 21209816988
- Sum of all divisors σ(n): 56606128488
- Sum of proper divisors (its aliquot sum) s(n): 35396311500
- 21209816988 is an abundant number, because the sum of its proper divisors (35396311500) is greater than itself. Its abundance is 14186494512
Bases of 21209816988
- Binary: 100111100000011010000011111100111002
- Hexadecimal: 0x4F0341F9C
- Base-36: 9QRRZJ0
Squares and roots of 21209816988
- 21209816988 squared (212098169882) is 449856336664453392144
- 21209816988 cubed (212098169883) is 9541370571545170812430036942272
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The
square root of 21209816988 is 145635.9055590345 -
The
cube root of 21209816988 is 2768.0821431889
Scales and comparisons
How big is 21209816988?- 21,209,816,988 seconds is equal to 674 years, 21 weeks, 23 hours, 49 minutes, 48 seconds.
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To count from 1 to 21,209,816,988 would take you about one thousand, three hundred forty-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 21209816988 cubic inches would be around 230.7 feet tall.
Recreational maths with 21209816988
- 21209816988 backwards is 88961890212
- The number of decimal digits it has is: 11
- The sum of 21209816988's digits is 54
- More coming soon!
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The information we have on file for 21209816988 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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