81496960
81,496,960 is an even composite number composed of four prime numbers multiplied together.
81496960 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 81496960:
27 × 5 × 29 × 4391
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 29 × 4391)See below for interesting mathematical facts about the number 81496960 from the Numbermatics database.
Names of 81496960
- Cardinal: 81496960 can be written as Eighty-one million, four hundred ninety-six thousand, nine hundred sixty.
Scientific notation
- Scientific notation: 8.149696 × 107
Factors of 81496960
Divisors of 81496960
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 5 8 10 16 20 29 32 40 58 64 80 116 128 145 160 232 290 320 464 580 640 928 1160 1856 2320 3712 4391 4640 8782 9280 17564 18560 21955 35128 43910 70256 87820 127339 140512 175640 254678 281024 351280 509356 562048 636695 702560 1018712 1273390 1405120 2037424 2546780 2810240 4074848 5093560 8149696 10187120 16299392 20374240 40748480 81496960
- Sum of all divisors σ(n): 201592800
- Sum of proper divisors (its aliquot sum) s(n): 120095840
- 81496960 is an abundant number, because the sum of its proper divisors (120095840) is greater than itself. Its abundance is 38598880
Bases of 81496960
- Binary: 1001101101110001011100000002
- Hexadecimal: 0x4DB8B80
- Base-36: 1CIRGG
Squares and roots of 81496960
- 81496960 squared (814969602) is 6641754489241600
- 81496960 cubed (814969603) is 541282799939543105536000
-
The
square root of 81496960 is 9027.5666710359 -
The
cube root of 81496960 is 433.5579322213
Scales and comparisons
How big is 81496960?- 81,496,960 seconds is equal to 2 years, 30 weeks, 5 days, 6 hours, 2 minutes, 40 seconds.
-
To count from 1 to 81,496,960 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 81496960 cubic inches would be around 36.1 feet tall.
Recreational maths with 81496960
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The information we have on file for 81496960 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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