138431678
138,431,678 is an even composite number composed of six prime numbers multiplied together.
138431678 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 138431678:
2 × 7 × 11 × 31 × 107 × 271
See below for interesting mathematical facts about the number 138431678 from the Numbermatics database.
Names of 138431678
- Cardinal: 138431678 can be written as One hundred thirty-eight million, four hundred thirty-one thousand, six hundred seventy-eight.
Scientific notation
- Scientific notation: 1.38431678 × 108
Factors of 138431678
Divisors of 138431678
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 7 11 14 22 31 62 77 107 154 214 217 271 341 434 542 682 749 1177 1498 1897 2354 2387 2981 3317 3794 4774 5962 6634 8239 8401 16478 16802 20867 23219 28997 36487 41734 46438 57994 58807 72974 92411 117614 184822 202979 255409 318967 405958 510818 637934 646877 898907 1293754 1797814 2232769 4465538 6292349 9887977 12584698 19775954 69215839 138431678
- Sum of all divisors σ(n): 270729216
- Sum of proper divisors (its aliquot sum) s(n): 132297538
- 138431678 is a deficient number, because the sum of its proper divisors (132297538) is less than itself. Its deficiency is 6134140
Bases of 138431678
- Binary: 10000100000001001100101111102
- Hexadecimal: 0x8404CBE
- Base-36: 2AF2KE
Squares and roots of 138431678
- 138431678 squared (1384316782) is 19163329473895684
- 138431678 cubed (1384316783) is 2652811855138236733077752
-
The
square root of 138431678 is 11765.6992142413 -
The
cube root of 138431678 is 517.3031954085
Scales and comparisons
How big is 138431678?- 138,431,678 seconds is equal to 4 years, 20 weeks, 6 days, 5 hours, 14 minutes, 38 seconds.
-
To count from 1 to 138,431,678 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 138431678 cubic inches would be around 43.1 feet tall.
Recreational maths with 138431678
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The information we have on file for 138431678 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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