138548991

138,548,991 is an odd composite number composed of four prime numbers multiplied together.

What does the number 138548991 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

138548991 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 138548991:

3 × 7 × 149 × 44279

See below for interesting mathematical facts about the number 138548991 from the Numbermatics database.

Names of 138548991

Cardinal: 138548991 can be written as One hundred thirty-eight million, five hundred forty-eight thousand, nine hundred ninety-one.

Scientific notation

Scientific notation: 1.38548991 × 10⁸

Factors of 138548991

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 44438

Divisors of 138548991

Number of divisors d(n): 16
Complete list of divisors:
1 3 7 21 149 447 1043 3129 44279 132837 309953 929859 6597571 19792713 46182997 138548991
Sum of all divisors σ(n): 212544000
Sum of proper divisors (its aliquot sum) s(n): 73995009
138548991 is a deficient number, because the sum of its proper divisors (73995009) is less than itself. Its deficiency is 64553982

Bases of 138548991

Binary: 1000010000100001011011111111₂
Hexadecimal: 0x84216FF
Base-36: 2AHL33

Squares and roots of 138548991

138548991 squared (138548991²) is 19195822907118081
138548991 cubed (138548991³) is 2659561895195896840406271
The square root of 138548991 is 11770.6835400497
The cube root of 138548991 is 517.4492825277

Scales and comparisons

How big is 138548991?

138,548,991 seconds is equal to 4 years, 21 weeks, 13 hours, 49 minutes, 51 seconds.
To count from 1 to 138,548,991 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 138548991 cubic inches would be around 43.1 feet tall.

Recreational maths with 138548991

138548991 backwards is 199845831
The number of decimal digits it has is: 9
The sum of 138548991's digits is 48
More coming soon!

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The information we have on file for 138548991 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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