138005868
138,005,868 is an even composite number composed of six prime numbers multiplied together.
138005868 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 138005868:
22 × 3 × 7 × 11 × 13 × 11489
(2 × 2 × 3 × 7 × 11 × 13 × 11489)See below for interesting mathematical facts about the number 138005868 from the Numbermatics database.
Names of 138005868
- Cardinal: 138005868 can be written as One hundred thirty-eight million, five thousand, eight hundred sixty-eight.
Scientific notation
- Scientific notation: 1.38005868 × 108
Factors of 138005868
Divisors of 138005868
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 7 11 12 13 14 21 22 26 28 33 39 42 44 52 66 77 78 84 91 132 143 154 156 182 231 273 286 308 364 429 462 546 572 858 924 1001 1092 1716 2002 3003 4004 6006 11489 12012 22978 34467 45956 68934 80423 126379 137868 149357 160846 241269 252758 298714 321692 379137 448071 482538 505516 597428 758274 884653 896142 965076 1045499 1516548 1642927 1769306 1792284 2090998 2653959 3136497 3285854 3538612 4181996 4928781 5307918 6272994 6571708 9857562 10615836 11500489 12545988 19715124 23000978 34501467 46001956 69002934 138005868
- Sum of all divisors σ(n): 432391680
- Sum of proper divisors (its aliquot sum) s(n): 294385812
- 138005868 is an abundant number, because the sum of its proper divisors (294385812) is greater than itself. Its abundance is 156379944
Bases of 138005868
- Binary: 10000011100111001101011011002
- Hexadecimal: 0x839CD6C
- Base-36: 2A5Y0C
Squares and roots of 138005868
- 138005868 squared (1380058682) is 19045619602433424
- 138005868 cubed (1380058683) is 2628407264831639591332032
-
The
square root of 138005868 is 11747.5898804819 -
The
cube root of 138005868 is 516.7722497135
Scales and comparisons
How big is 138005868?- 138,005,868 seconds is equal to 4 years, 20 weeks, 1 day, 6 hours, 57 minutes, 48 seconds.
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To count from 1 to 138,005,868 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 138005868 cubic inches would be around 43.1 feet tall.
Recreational maths with 138005868
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