138685

138,685 is an odd composite number composed of two prime numbers multiplied together.

What does the number 138685 look like?

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

138685 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 138685:

5 × 27737

See below for interesting mathematical facts about the number 138685 from the Numbermatics database.

Names of 138685

Cardinal: 138685 can be written as One hundred thirty-eight thousand, six hundred eighty-five.

Scientific notation

Scientific notation: 1.38685 × 10⁵

Factors of 138685

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 27742

Divisors of 138685

Number of divisors d(n): 4
Complete list of divisors:
1 5 27737 138685
Sum of all divisors σ(n): 166428
Sum of proper divisors (its aliquot sum) s(n): 27743
138685 is a deficient number, because the sum of its proper divisors (27743) is less than itself. Its deficiency is 110942

Bases of 138685

Binary: 100001110110111101₂
Hexadecimal: 0x21DBD
Base-36: 2Z0D

Squares and roots of 138685

138685 squared (138685²) is 19233529225
138685 cubed (138685³) is 2667402000569125
The square root of 138685 is 372.4043501357
The cube root of 138685 is 51.7618548149

Scales and comparisons

How big is 138685?

138,685 seconds is equal to 1 day, 14 hours, 31 minutes, 25 seconds.
To count from 1 to 138,685 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 138685 cubic inches would be around 4.3 feet tall.

Recreational maths with 138685

138685 backwards is 586831
The number of decimal digits it has is: 6
The sum of 138685's digits is 31
More coming soon!

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The information we have on file for 138685 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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