138909810
138,909,810 is an even composite number composed of six prime numbers multiplied together.
138909810 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 138909810:
2 × 3 × 5 × 13 × 61 × 5839
See below for interesting mathematical facts about the number 138909810 from the Numbermatics database.
Names of 138909810
- Cardinal: 138909810 can be written as One hundred thirty-eight million, nine hundred nine thousand, eight hundred ten.
Scientific notation
- Scientific notation: 1.3890981 × 108
Factors of 138909810
Divisors of 138909810
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 5 6 10 13 15 26 30 39 61 65 78 122 130 183 195 305 366 390 610 793 915 1586 1830 2379 3965 4758 5839 7930 11678 11895 17517 23790 29195 35034 58390 75907 87585 151814 175170 227721 356179 379535 455442 712358 759070 1068537 1138605 1780895 2137074 2277210 3561790 4630327 5342685 9260654 10685370 13890981 23151635 27781962 46303270 69454905 138909810
- Sum of all divisors σ(n): 364976640
- Sum of proper divisors (its aliquot sum) s(n): 226066830
- 138909810 is an abundant number, because the sum of its proper divisors (226066830) is greater than itself. Its abundance is 87157020
Bases of 138909810
- Binary: 10000100011110011000011100102
- Hexadecimal: 0x8479872
- Base-36: 2APBHU
Squares and roots of 138909810
- 138909810 squared (1389098102) is 19295935314236100
- 138909810 cubed (1389098103) is 2680394708272826946141000
-
The
square root of 138909810 is 11786.0005939249 -
The
cube root of 138909810 is 517.8980857229
Scales and comparisons
How big is 138909810?- 138,909,810 seconds is equal to 4 years, 21 weeks, 4 days, 18 hours, 3 minutes, 30 seconds.
-
To count from 1 to 138,909,810 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 138909810 cubic inches would be around 43.2 feet tall.
Recreational maths with 138909810
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The information we have on file for 138909810 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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