138995868
138,995,868 is an even composite number composed of six prime numbers multiplied together.
138995868 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 138995868:
22 × 3 × 11 × 19 × 157 × 353
(2 × 2 × 3 × 11 × 19 × 157 × 353)See below for interesting mathematical facts about the number 138995868 from the Numbermatics database.
Names of 138995868
- Cardinal: 138995868 can be written as One hundred thirty-eight million, nine hundred ninety-five thousand, eight hundred sixty-eight.
Scientific notation
- Scientific notation: 1.38995868 × 108
Factors of 138995868
Divisors of 138995868
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 114 132 157 209 228 314 353 418 471 627 628 706 836 942 1059 1254 1412 1727 1884 2118 2508 2983 3454 3883 4236 5181 5966 6707 6908 7766 8949 10362 11649 11932 13414 15532 17898 20121 20724 23298 26828 32813 35796 40242 46596 55421 65626 73777 80484 98439 110842 131252 147554 166263 196878 221331 221684 295108 332526 393756 442662 609631 665052 885324 1052999 1219262 1828893 2105998 2438524 3158997 3657786 4211996 6317994 7315572 11582989 12635988 23165978 34748967 46331956 69497934 138995868
- Sum of all divisors σ(n): 375863040
- Sum of proper divisors (its aliquot sum) s(n): 236867172
- 138995868 is an abundant number, because the sum of its proper divisors (236867172) is greater than itself. Its abundance is 97871304
Bases of 138995868
- Binary: 10000100100011101000100111002
- Hexadecimal: 0x848E89C
- Base-36: 2AR5WC
Squares and roots of 138995868
- 138995868 squared (1389958682) is 19319851321073424
- 138995868 cubed (1389958683) is 2685379504003547260612032
-
The
square root of 138995868 is 11789.6508854163 -
The
cube root of 138995868 is 518.0050137905
Scales and comparisons
How big is 138995868?- 138,995,868 seconds is equal to 4 years, 21 weeks, 5 days, 17 hours, 57 minutes, 48 seconds.
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To count from 1 to 138,995,868 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 138995868 cubic inches would be around 43.2 feet tall.
Recreational maths with 138995868
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