31157213720
31,157,213,720 is an even composite number composed of five prime numbers multiplied together.
31157213720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 31157213720:
23 × 5 × 29 × 211 × 127297
(2 × 2 × 2 × 5 × 29 × 211 × 127297)See below for interesting mathematical facts about the number 31157213720 from the Numbermatics database.
Names of 31157213720
- Cardinal: 31157213720 can be written as Thirty-one billion, one hundred fifty-seven million, two hundred thirteen thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 3.115721372 × 1010
Factors of 31157213720
Divisors of 31157213720
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 5 8 10 20 29 40 58 116 145 211 232 290 422 580 844 1055 1160 1688 2110 4220 6119 8440 12238 24476 30595 48952 61190 122380 127297 244760 254594 509188 636485 1018376 1272970 2545940 3691613 5091880 7383226 14766452 18458065 26859667 29532904 36916130 53719334 73832260 107438668 134298335 147664520 214877336 268596670 537193340 778930343 1074386680 1557860686 3115721372 3894651715 6231442744 7789303430 15578606860 31157213720
- Sum of all divisors σ(n): 72865375200
- Sum of proper divisors (its aliquot sum) s(n): 41708161480
- 31157213720 is an abundant number, because the sum of its proper divisors (41708161480) is greater than itself. Its abundance is 10550947760
Bases of 31157213720
- Binary: 111010000010001110101011010000110002
- Hexadecimal: 0x7411D5A18
- Base-36: EBA77YW
Squares and roots of 31157213720
- 31157213720 squared (311572137202) is 970771966793756238400
- 31157213720 cubed (311572137203) is 30246549642777806281412070848000
-
The
square root of 31157213720 is 176514.0609696575 -
The
cube root of 31157213720 is 3146.6821105985
Scales and comparisons
How big is 31157213720?- 31,157,213,720 seconds is equal to 990 years, 36 weeks, 3 days, 21 hours, 35 minutes, 20 seconds.
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To count from 1 to 31,157,213,720 would take you about one thousand, nine hundred eighty-one 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 31157213720 cubic inches would be around 262.2 feet tall.
Recreational maths with 31157213720
- 31157213720 backwards is 02731275113
- The number of decimal digits it has is: 11
- The sum of 31157213720's digits is 32
- More coming soon!
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The information we have on file for 31157213720 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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