138431920
138,431,920 is an even composite number composed of five prime numbers multiplied together.
138431920 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 138431920:
24 × 5 × 11 × 47 × 3347
(2 × 2 × 2 × 2 × 5 × 11 × 47 × 3347)See below for interesting mathematical facts about the number 138431920 from the Numbermatics database.
Names of 138431920
- Cardinal: 138431920 can be written as One hundred thirty-eight million, four hundred thirty-one thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.3843192 × 108
Factors of 138431920
Divisors of 138431920
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 40 44 47 55 80 88 94 110 176 188 220 235 376 440 470 517 752 880 940 1034 1880 2068 2585 3347 3760 4136 5170 6694 8272 10340 13388 16735 20680 26776 33470 36817 41360 53552 66940 73634 133880 147268 157309 184085 267760 294536 314618 368170 589072 629236 736340 786545 1258472 1472680 1573090 1730399 2516944 2945360 3146180 3460798 6292360 6921596 8651995 12584720 13843192 17303990 27686384 34607980 69215960 138431920
- Sum of all divisors σ(n): 358691328
- Sum of proper divisors (its aliquot sum) s(n): 220259408
- 138431920 is an abundant number, because the sum of its proper divisors (220259408) is greater than itself. Its abundance is 81827488
Bases of 138431920
- Binary: 10000100000001001101101100002
- Hexadecimal: 0x8404DB0
- Base-36: 2AF2R4
Squares and roots of 138431920
- 138431920 squared (1384319202) is 19163396474886400
- 138431920 cubed (1384319203) is 2652825767739756133888000
-
The
square root of 138431920 is 11765.7094983685 -
The
cube root of 138431920 is 517.3034968503
Scales and comparisons
How big is 138431920?- 138,431,920 seconds is equal to 4 years, 20 weeks, 6 days, 5 hours, 18 minutes, 40 seconds.
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To count from 1 to 138,431,920 would take you about six 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 138431920 cubic inches would be around 43.1 feet tall.
Recreational maths with 138431920
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The information we have on file for 138431920 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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