138890

138,890 is an even composite number composed of five prime numbers multiplied together.

What does the number 138890 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 32 divisors.

138890 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 138890:

2 × 5 × 17 × 19 × 43

See below for interesting mathematical facts about the number 138890 from the Numbermatics database.

Names of 138890

Cardinal: 138890 can be written as One hundred thirty-eight thousand, eight hundred ninety.

Scientific notation

Scientific notation: 1.3889 × 10⁵

Factors of 138890

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 86

Divisors of 138890

Number of divisors d(n): 32
Complete list of divisors:
1 2 5 10 17 19 34 38 43 85 86 95 170 190 215 323 430 646 731 817 1462 1615 1634 3230 3655 4085 7310 8170 13889 27778 69445 138890
Sum of all divisors σ(n): 285120
Sum of proper divisors (its aliquot sum) s(n): 146230
138890 is an abundant number, because the sum of its proper divisors (146230) is greater than itself. Its abundance is 7340

Bases of 138890

Binary: 100001111010001010₂
Hexadecimal: 0x21E8A
Base-36: 2Z62

Squares and roots of 138890

138890 squared (138890²) is 19290432100
138890 cubed (138890³) is 2679248114369000
The square root of 138890 is 372.6794869589
The cube root of 138890 is 51.7873465315

Scales and comparisons

How big is 138890?

138,890 seconds is equal to 1 day, 14 hours, 34 minutes, 50 seconds.
To count from 1 to 138,890 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 138890 cubic inches would be around 4.3 feet tall.

Recreational maths with 138890

138890 backwards is 098831
The number of decimal digits it has is: 6
The sum of 138890's digits is 29
More coming soon!

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The information we have on file for 138890 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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