138990

138,990 is an even composite number composed of five prime numbers multiplied together.

What does the number 138990 look like?

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

138990 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 138990:

2 × 3 × 5 × 41 × 113

See below for interesting mathematical facts about the number 138990 from the Numbermatics database.

Names of 138990

Cardinal: 138990 can be written as One hundred thirty-eight thousand, nine hundred ninety.

Scientific notation

Scientific notation: 1.3899 × 10⁵

Factors of 138990

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 164

Divisors of 138990

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 5 6 10 15 30 41 82 113 123 205 226 246 339 410 565 615 678 1130 1230 1695 3390 4633 9266 13899 23165 27798 46330 69495 138990
Sum of all divisors σ(n): 344736
Sum of proper divisors (its aliquot sum) s(n): 205746
138990 is an abundant number, because the sum of its proper divisors (205746) is greater than itself. Its abundance is 66756

Bases of 138990

Binary: 100001111011101110₂
Hexadecimal: 0x21EEE
Base-36: 2Z8U

Squares and roots of 138990

138990 squared (138990²) is 19318220100
138990 cubed (138990³) is 2685039411699000
The square root of 138990 is 372.8136263605
The cube root of 138990 is 51.7997724135

Scales and comparisons

How big is 138990?

138,990 seconds is equal to 1 day, 14 hours, 36 minutes, 30 seconds.
To count from 1 to 138,990 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 138990 cubic inches would be around 4.3 feet tall.

Recreational maths with 138990

138990 backwards is 099831
138990 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 138990's digits is 30
More coming soon!

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The information we have on file for 138990 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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