138537472
138,537,472 is an even composite number composed of four prime numbers multiplied together.
138537472 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 138537472:
29 × 37 × 71 × 103
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 37 × 71 × 103)See below for interesting mathematical facts about the number 138537472 from the Numbermatics database.
Names of 138537472
- Cardinal: 138537472 can be written as One hundred thirty-eight million, five hundred thirty-seven thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 1.38537472 × 108
Factors of 138537472
Divisors of 138537472
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 8 16 32 37 64 71 74 103 128 142 148 206 256 284 296 412 512 568 592 824 1136 1184 1648 2272 2368 2627 3296 3811 4544 4736 5254 6592 7313 7622 9088 9472 10508 13184 14626 15244 18176 18944 21016 26368 29252 30488 36352 42032 52736 58504 60976 84064 117008 121952 168128 234016 243904 270581 336256 468032 487808 541162 672512 936064 975616 1082324 1345024 1872128 1951232 2164648 3744256 4329296 8658592 17317184 34634368 69268736 138537472
- Sum of all divisors σ(n): 291088512
- Sum of proper divisors (its aliquot sum) s(n): 152551040
- 138537472 is an abundant number, because the sum of its proper divisors (152551040) is greater than itself. Its abundance is 14013568
Bases of 138537472
- Binary: 10000100000111101010000000002
- Hexadecimal: 0x841EA00
- Base-36: 2AHC74
Squares and roots of 138537472
- 138537472 squared (1385374722) is 19192631148150784
- 138537472 cubed (1385374723) is 2658898600293267090178048
-
The
square root of 138537472 is 11770.1942209973 -
The
cube root of 138537472 is 517.4349418399
Scales and comparisons
How big is 138537472?- 138,537,472 seconds is equal to 4 years, 21 weeks, 10 hours, 37 minutes, 52 seconds.
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To count from 1 to 138,537,472 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 138537472 cubic inches would be around 43.1 feet tall.
Recreational maths with 138537472
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