138955943242
138,955,943,242 is an even composite number composed of four prime numbers multiplied together.
138955943242 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.
Prime factorization of 138955943242:
2 × 31 × 911 × 2460181
See below for interesting mathematical facts about the number 138955943242 from the Numbermatics database.
Names of 138955943242
- Cardinal: 138955943242 can be written as One hundred thirty-eight billion, nine hundred fifty-five million, nine hundred forty-three thousand, two hundred forty-two.
Scientific notation
- Scientific notation: 1.38955943242 × 1011
Factors of 138955943242
Divisors of 138955943242
- Number of divisors d(n): 16
- Complete list of divisors:
- Sum of all divisors σ(n): 215393854464
- Sum of proper divisors (its aliquot sum) s(n): 76437911222
- 138955943242 is a deficient number, because the sum of its proper divisors (76437911222) is less than itself. Its deficiency is 62518032020
Bases of 138955943242
- Binary: 100000010110100110101101101101010010102
- Hexadecimal: 0x205A6B6D4A
- Base-36: 1RU2S40A
Squares and roots of 138955943242
- 138955943242 squared (1389559432422) is 19308754162273925470564
- 138955943242 cubed (1389559432423) is 2683066147446666845344229325728488
-
The
square root of 138955943242 is 372767.9482493097 -
The
cube root of 138955943242 is 5179.5541230333
Scales and comparisons
How big is 138955943242?- 138,955,943,242 seconds is equal to 4,418 years, 19 weeks, 1 day, 9 hours, 7 minutes, 22 seconds.
-
To count from 1 to 138,955,943,242 would take you about eight thousand, eight hundred thirty-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 138955943242 cubic inches would be around 431.6 feet tall.
Recreational maths with 138955943242
- 138955943242 backwards is 242349559831
- The number of decimal digits it has is: 12
- The sum of 138955943242's digits is 55
- More coming soon!
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