138887

138,887 is an odd composite number composed of two prime numbers multiplied together.

What does the number 138887 look like?

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

138887 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 138887:

7 × 19841

See below for interesting mathematical facts about the number 138887 from the Numbermatics database.

Names of 138887

Cardinal: 138887 can be written as One hundred thirty-eight thousand, eight hundred eighty-seven.

Scientific notation

Scientific notation: 1.38887 × 10⁵

Factors of 138887

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 19848

Divisors of 138887

Number of divisors d(n): 4
Complete list of divisors:
1 7 19841 138887
Sum of all divisors σ(n): 158736
Sum of proper divisors (its aliquot sum) s(n): 19849
138887 is a deficient number, because the sum of its proper divisors (19849) is less than itself. Its deficiency is 119038

Bases of 138887

Binary: 100001111010000111₂
Hexadecimal: 0x21E87
Base-36: 2Z5Z

Squares and roots of 138887

138887 squared (138887²) is 19289598769
138887 cubed (138887³) is 2679074504230103
The square root of 138887 is 372.6754620309
The cube root of 138887 is 51.7869736629

Scales and comparisons

How big is 138887?

138,887 seconds is equal to 1 day, 14 hours, 34 minutes, 47 seconds.
To count from 1 to 138,887 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 138887 cubic inches would be around 4.3 feet tall.

Recreational maths with 138887

138887 backwards is 788831
The number of decimal digits it has is: 6
The sum of 138887's digits is 35
More coming soon!

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The information we have on file for 138887 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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