138689568
138,689,568 is an even composite number composed of four prime numbers multiplied together.
138689568 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 138689568:
25 × 32 × 397 × 1213
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 397 × 1213)See below for interesting mathematical facts about the number 138689568 from the Numbermatics database.
Names of 138689568
- Cardinal: 138689568 can be written as One hundred thirty-eight million, six hundred eighty-nine thousand, five hundred sixty-eight.
Scientific notation
- Scientific notation: 1.38689568 × 108
Factors of 138689568
Divisors of 138689568
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 397 794 1191 1213 1588 2382 2426 3176 3573 3639 4764 4852 6352 7146 7278 9528 9704 10917 12704 14292 14556 19056 19408 21834 28584 29112 38112 38816 43668 57168 58224 87336 114336 116448 174672 349344 481561 963122 1444683 1926244 2889366 3852488 4334049 5778732 7704976 8668098 11557464 15409952 17336196 23114928 34672392 46229856 69344784 138689568
- Sum of all divisors σ(n): 395717868
- Sum of proper divisors (its aliquot sum) s(n): 257028300
- 138689568 is an abundant number, because the sum of its proper divisors (257028300) is greater than itself. Its abundance is 118338732
Bases of 138689568
- Binary: 10000100010000111100001000002
- Hexadecimal: 0x8443C20
- Base-36: 2AKLK0
Squares and roots of 138689568
- 138689568 squared (1386895682) is 19234796272026624
- 138689568 cubed (1386895683) is 2667665585535382967058432
-
The
square root of 138689568 is 11776.6535144751 -
The
cube root of 138689568 is 517.6242311843
Scales and comparisons
How big is 138689568?- 138,689,568 seconds is equal to 4 years, 21 weeks, 2 days, 4 hours, 52 minutes, 48 seconds.
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To count from 1 to 138,689,568 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 138689568 cubic inches would be around 43.1 feet tall.
Recreational maths with 138689568
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The information we have on file for 138689568 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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