138900256
138,900,256 is an even composite number composed of four prime numbers multiplied together.
138900256 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 138900256:
25 × 112 × 29 × 1237
(2 × 2 × 2 × 2 × 2 × 11 × 11 × 29 × 1237)See below for interesting mathematical facts about the number 138900256 from the Numbermatics database.
Names of 138900256
- Cardinal: 138900256 can be written as One hundred thirty-eight million, nine hundred thousand, two hundred fifty-six.
Scientific notation
- Scientific notation: 1.38900256 × 108
Factors of 138900256
Divisors of 138900256
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 8 11 16 22 29 32 44 58 88 116 121 176 232 242 319 352 464 484 638 928 968 1237 1276 1936 2474 2552 3509 3872 4948 5104 7018 9896 10208 13607 14036 19792 27214 28072 35873 39584 54428 56144 71746 108856 112288 143492 149677 217712 286984 299354 394603 435424 573968 598708 789206 1147936 1197416 1578412 2394832 3156824 4340633 4789664 6313648 8681266 12627296 17362532 34725064 69450128 138900256
- Sum of all divisors σ(n): 311196060
- Sum of proper divisors (its aliquot sum) s(n): 172295804
- 138900256 is an abundant number, because the sum of its proper divisors (172295804) is greater than itself. Its abundance is 33395548
Bases of 138900256
- Binary: 10000100011101110011001000002
- Hexadecimal: 0x8477320
- Base-36: 2AP44G
Squares and roots of 138900256
- 138900256 squared (1389002562) is 19293281116865536
- 138900256 cubed (1389002563) is 2679841686212588867977216
-
The
square root of 138900256 is 11785.5952755897 -
The
cube root of 138900256 is 517.8862120429
Scales and comparisons
How big is 138900256?- 138,900,256 seconds is equal to 4 years, 21 weeks, 4 days, 15 hours, 24 minutes, 16 seconds.
-
To count from 1 to 138,900,256 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 138900256 cubic inches would be around 43.2 feet tall.
Recreational maths with 138900256
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