81330080
81,330,080 is an even composite number composed of five prime numbers multiplied together.
81330080 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 81330080:
25 × 5 × 13 × 61 × 641
(2 × 2 × 2 × 2 × 2 × 5 × 13 × 61 × 641)See below for interesting mathematical facts about the number 81330080 from the Numbermatics database.
Names of 81330080
- Cardinal: 81330080 can be written as Eighty-one million, three hundred thirty thousand and eighty.
Scientific notation
- Scientific notation: 8.133008 × 107
Factors of 81330080
Divisors of 81330080
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 32 40 52 61 65 80 104 122 130 160 208 244 260 305 416 488 520 610 641 793 976 1040 1220 1282 1586 1952 2080 2440 2564 3172 3205 3965 4880 5128 6344 6410 7930 8333 9760 10256 12688 12820 15860 16666 20512 25376 25640 31720 33332 39101 41665 51280 63440 66664 78202 83330 102560 126880 133328 156404 166660 195505 266656 312808 333320 391010 508313 625616 666640 782020 1016626 1251232 1333280 1564040 2033252 2541565 3128080 4066504 5083130 6256160 8133008 10166260 16266016 20332520 40665040 81330080
- Sum of all divisors σ(n): 210642768
- Sum of proper divisors (its aliquot sum) s(n): 129312688
- 81330080 is an abundant number, because the sum of its proper divisors (129312688) is greater than itself. Its abundance is 47982608
Bases of 81330080
- Binary: 1001101100011111111101000002
- Hexadecimal: 0x4D8FFA0
- Base-36: 1CF6OW
Squares and roots of 81330080
- 81330080 squared (813300802) is 6614581912806400
- 81330080 cubed (813300803) is 537964476135097536512000
-
The
square root of 81330080 is 9018.3191338521 -
The
cube root of 81330080 is 433.2618001581
Scales and comparisons
How big is 81330080?- 81,330,080 seconds is equal to 2 years, 30 weeks, 3 days, 7 hours, 41 minutes, 20 seconds.
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To count from 1 to 81,330,080 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 81330080 cubic inches would be around 36.1 feet tall.
Recreational maths with 81330080
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The information we have on file for 81330080 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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