138864128
138,864,128 is an even composite number composed of four prime numbers multiplied together.
138864128 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 138864128:
29 × 13 × 31 × 673
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 31 × 673)See below for interesting mathematical facts about the number 138864128 from the Numbermatics database.
Names of 138864128
- Cardinal: 138864128 can be written as One hundred thirty-eight million, eight hundred sixty-four thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 1.38864128 × 108
Factors of 138864128
Divisors of 138864128
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 4 8 13 16 26 31 32 52 62 64 104 124 128 208 248 256 403 416 496 512 673 806 832 992 1346 1612 1664 1984 2692 3224 3328 3968 5384 6448 6656 7936 8749 10768 12896 15872 17498 20863 21536 25792 34996 41726 43072 51584 69992 83452 86144 103168 139984 166904 172288 206336 271219 279968 333808 344576 542438 559936 667616 1084876 1119872 1335232 2169752 2239744 2670464 4339504 4479488 5340928 8679008 10681856 17358016 34716032 69432064 138864128
- Sum of all divisors σ(n): 308896896
- Sum of proper divisors (its aliquot sum) s(n): 170032768
- 138864128 is an abundant number, because the sum of its proper divisors (170032768) is greater than itself. Its abundance is 31168640
Bases of 138864128
- Binary: 10000100011011100110000000002
- Hexadecimal: 0x846E600
- Base-36: 2AOC8W
Squares and roots of 138864128
- 138864128 squared (1388641282) is 19283246045200384
- 138864128 cubed (1388641283) is 2677751147076199909425152
-
The
square root of 138864128 is 11784.0624574041 -
The
cube root of 138864128 is 517.8413073611
Scales and comparisons
How big is 138864128?- 138,864,128 seconds is equal to 4 years, 21 weeks, 4 days, 5 hours, 22 minutes, 8 seconds.
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To count from 1 to 138,864,128 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 138864128 cubic inches would be around 43.2 feet tall.
Recreational maths with 138864128
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