81342960
81,342,960 is an even composite number composed of five prime numbers multiplied together.
81342960 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 81342960:
24 × 3 × 5 × 17 × 19937
(2 × 2 × 2 × 2 × 3 × 5 × 17 × 19937)See below for interesting mathematical facts about the number 81342960 from the Numbermatics database.
Names of 81342960
- Cardinal: 81342960 can be written as Eighty-one million, three hundred forty-two thousand, nine hundred sixty.
Scientific notation
- Scientific notation: 8.134296 × 107
Factors of 81342960
Divisors of 81342960
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 120 136 170 204 240 255 272 340 408 510 680 816 1020 1360 2040 4080 19937 39874 59811 79748 99685 119622 159496 199370 239244 299055 318992 338929 398740 478488 598110 677858 797480 956976 1016787 1196220 1355716 1594960 1694645 2033574 2392440 2711432 3389290 4067148 4784880 5083935 5422864 6778580 8134296 10167870 13557160 16268592 20335740 27114320 40671480 81342960
- Sum of all divisors σ(n): 267009696
- Sum of proper divisors (its aliquot sum) s(n): 185666736
- 81342960 is an abundant number, because the sum of its proper divisors (185666736) is greater than itself. Its abundance is 104323776
Bases of 81342960
- Binary: 1001101100100110001111100002
- Hexadecimal: 0x4D931F0
- Base-36: 1CFGMO
Squares and roots of 81342960
- 81342960 squared (813429602) is 6616677141561600
- 81342960 cubed (813429603) is 538220104058959566336000
-
The
square root of 81342960 is 9019.0332076115 -
The
cube root of 81342960 is 433.2846704065
Scales and comparisons
How big is 81342960?- 81,342,960 seconds is equal to 2 years, 30 weeks, 3 days, 11 hours, 16 minutes.
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To count from 1 to 81,342,960 would take you about 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 81342960 cubic inches would be around 36.1 feet tall.
Recreational maths with 81342960
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The information we have on file for 81342960 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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