138045728
138,045,728 is an even composite number composed of three prime numbers multiplied together.
138045728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of fifty-four divisors.
Prime factorization of 138045728:
25 × 312 × 672
(2 × 2 × 2 × 2 × 2 × 31 × 31 × 67 × 67)See below for interesting mathematical facts about the number 138045728 from the Numbermatics database.
Names of 138045728
- Cardinal: 138045728 can be written as One hundred thirty-eight million, forty-five thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.38045728 × 108
Factors of 138045728
Divisors of 138045728
- Number of divisors d(n): 54
-
Complete list of divisors:
1 2 4 8 16 31 32 62 67 124 134 248 268 496 536 961 992 1072 1922 2077 2144 3844 4154 4489 7688 8308 8978 15376 16616 17956 30752 33232 35912 64387 66464 71824 128774 139159 143648 257548 278318 515096 556636 1030192 1113272 2060384 2226544 4313929 4453088 8627858 17255716 34511432 69022864 138045728
- Sum of all divisors σ(n): 285081363
- Sum of proper divisors (its aliquot sum) s(n): 147035635
- 138045728 is an abundant number, because the sum of its proper divisors (147035635) is greater than itself. Its abundance is 8989907
Bases of 138045728
- Binary: 10000011101001101001001000002
- Hexadecimal: 0x83A6920
- Base-36: 2A6SRK
Squares and roots of 138045728
- 138045728 squared (1380457282) is 19056623019049984
- 138045728 cubed (1380457283) is 2630685397886312909668352
-
The
square root of 138045728 is 11749.2862761957 -
The
cube root of 138045728 is 516.8219977409
Scales and comparisons
How big is 138045728?- 138,045,728 seconds is equal to 4 years, 20 weeks, 1 day, 18 hours, 2 minutes, 8 seconds.
-
To count from 1 to 138,045,728 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 138045728 cubic inches would be around 43.1 feet tall.
Recreational maths with 138045728
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The information we have on file for 138045728 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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