138910990

138,910,990 is an even composite number composed of three prime numbers multiplied together.

What does the number 138910990 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

138910990 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 138910990:

2 × 5 × 13891099

See below for interesting mathematical facts about the number 138910990 from the Numbermatics database.

Names of 138910990

Cardinal: 138910990 can be written as One hundred thirty-eight million, nine hundred ten thousand, nine hundred ninety.

Scientific notation

Scientific notation: 1.3891099 × 10⁸

Factors of 138910990

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 13891106

Divisors of 138910990

Number of divisors d(n): 8
Complete list of divisors:
1 2 5 10 13891099 27782198 69455495 138910990
Sum of all divisors σ(n): 250039800
Sum of proper divisors (its aliquot sum) s(n): 111128810
138910990 is a deficient number, because the sum of its proper divisors (111128810) is less than itself. Its deficiency is 27782180

Bases of 138910990

Binary: 1000010001111001110100001110₂
Hexadecimal: 0x8479D0E
Base-36: 2APCEM

Squares and roots of 138910990

138910990 squared (138910990²) is 19296263142780100
138910990 cubed (138910990³) is 2680463016464095043299000
The square root of 138910990 is 11786.0506532087
The cube root of 138910990 is 517.8995521851

Scales and comparisons

How big is 138910990?

138,910,990 seconds is equal to 4 years, 21 weeks, 4 days, 18 hours, 23 minutes, 10 seconds.
To count from 1 to 138,910,990 would take you about six years!

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 138910990 cubic inches would be around 43.2 feet tall.

Recreational maths with 138910990

138910990 backwards is 099019831
The number of decimal digits it has is: 9
The sum of 138910990's digits is 40
More coming soon!

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The information we have on file for 138910990 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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