138722121

138,722,121 is an odd composite number composed of two prime numbers multiplied together.

What does the number 138722121 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

138722121 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 138722121:

3² × 15413569

(3 × 3 × 15413569)

See below for interesting mathematical facts about the number 138722121 from the Numbermatics database.

Names of 138722121

Cardinal: 138722121 can be written as One hundred thirty-eight million, seven hundred twenty-two thousand, one hundred twenty-one.

Scientific notation

Scientific notation: 1.38722121 × 10⁸

Factors of 138722121

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 15413572

Divisors of 138722121

Number of divisors d(n): 6
Complete list of divisors:
1 3 9 15413569 46240707 138722121
Sum of all divisors σ(n): 200376410
Sum of proper divisors (its aliquot sum) s(n): 61654289
138722121 is a deficient number, because the sum of its proper divisors (61654289) is less than itself. Its deficiency is 77067832

Bases of 138722121

Binary: 1000010001001011101101001001₂
Hexadecimal: 0x844BB49
Base-36: 2ALAO9

Squares and roots of 138722121

138722121 squared (138722121²) is 19243826854738641
138722121 cubed (138722121³) is 2669544477446103180177561
The square root of 138722121 is 11778.0355322949
The cube root of 138722121 is 517.6647266679

Scales and comparisons

How big is 138722121?

138,722,121 seconds is equal to 4 years, 21 weeks, 2 days, 13 hours, 55 minutes, 21 seconds.
To count from 1 to 138,722,121 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 138722121 cubic inches would be around 43.1 feet tall.

Recreational maths with 138722121

138722121 backwards is 121227831
The number of decimal digits it has is: 9
The sum of 138722121's digits is 27
More coming soon!

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The information we have on file for 138722121 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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