138940128
138,940,128 is an even composite number composed of four prime numbers multiplied together.
What does the number 138940128 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 72 divisors.
138940128 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 138940128:
25 × 32 × 613 × 787
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 613 × 787)See below for interesting mathematical facts about the number 138940128 from the Numbermatics database.
Names of 138940128
- Cardinal: 138940128 can be written as One hundred thirty-eight million, nine hundred forty thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 1.38940128 × 108
Factors of 138940128
Divisors of 138940128
- 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 96 144 288 613 787 1226 1574 1839 2361 2452 3148 3678 4722 4904 5517 6296 7083 7356 9444 9808 11034 12592 14166 14712 18888 19616 22068 25184 28332 29424 37776 44136 56664 58848 75552 88272 113328 176544 226656 482431 964862 1447293 1929724 2894586 3859448 4341879 5789172 7718896 8683758 11578344 15437792 17367516 23156688 34735032 46313376 69470064 138940128
- Sum of all divisors σ(n): 396258408
- Sum of proper divisors (its aliquot sum) s(n): 257318280
- 138940128 is an abundant number, because the sum of its proper divisors (257318280) is greater than itself. Its abundance is 118378152
Bases of 138940128
- Binary: 10000100100000001110111000002
- Hexadecimal: 0x8480EE0
- Base-36: 2APYW0
Squares and roots of 138940128
- 138940128 squared (1389401282) is 19304359168656384
- 138940128 cubed (1389401283) is 2682150133851091580977152
-
The
square root of 138940128 is 11787.2867106897 -
The
cube root of 138940128 is 517.9357612281
Scales and comparisons
How big is 138940128?- 138,940,128 seconds is equal to 4 years, 21 weeks, 5 days, 2 hours, 28 minutes, 48 seconds.
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To count from 1 to 138,940,128 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 138940128 cubic inches would be around 43.2 feet tall.
Recreational maths with 138940128
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The information we have on file for 138940128 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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