138979

138,979 is an odd composite number composed of two prime numbers multiplied together.

What does the number 138979 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

138979 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 138979:

47 × 2957

See below for interesting mathematical facts about the number 138979 from the Numbermatics database.

Names of 138979

Cardinal: 138979 can be written as One hundred thirty-eight thousand, nine hundred seventy-nine.

Scientific notation

Scientific notation: 1.38979 × 10⁵

Factors of 138979

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 3004

Divisors of 138979

Number of divisors d(n): 4
Complete list of divisors:
1 47 2957 138979
Sum of all divisors σ(n): 141984
Sum of proper divisors (its aliquot sum) s(n): 3005
138979 is a deficient number, because the sum of its proper divisors (3005) is less than itself. Its deficiency is 135974

Bases of 138979

Binary: 100001111011100011₂
Hexadecimal: 0x21EE3
Base-36: 2Z8J

Squares and roots of 138979

138979 squared (138979²) is 19315162441
138979 cubed (138979³) is 2684401960887739
The square root of 138979 is 372.7988733889
The cube root of 138979 is 51.7984058583

Scales and comparisons

How big is 138979?

138,979 seconds is equal to 1 day, 14 hours, 36 minutes, 19 seconds.
To count from 1 to 138,979 would take you about fourteen hours.

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 138979 cubic inches would be around 4.3 feet tall.

Recreational maths with 138979

138979 backwards is 979831
The number of decimal digits it has is: 6
The sum of 138979's digits is 37
More coming soon!

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The information we have on file for 138979 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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