131991

131,991 is an odd composite number composed of two prime numbers multiplied together.

What does the number 131991 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

131991 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 131991:

3 × 43997

See below for interesting mathematical facts about the number 131991 from the Numbermatics database.

Names of 131991

Cardinal: 131991 can be written as One hundred thirty-one thousand, nine hundred ninety-one.

Scientific notation

Scientific notation: 1.31991 × 10⁵

Factors of 131991

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 44000

Divisors of 131991

Number of divisors d(n): 4
Complete list of divisors:
1 3 43997 131991
Sum of all divisors σ(n): 175992
Sum of proper divisors (its aliquot sum) s(n): 44001
131991 is a deficient number, because the sum of its proper divisors (44001) is less than itself. Its deficiency is 87990

Bases of 131991

Binary: 100000001110010111₂
Hexadecimal: 0x20397
Base-36: 2TUF

Squares and roots of 131991

131991 squared (131991²) is 17421624081
131991 cubed (131991³) is 2299497584075271
The square root of 131991 is 363.3056564383
The cube root of 131991 is 50.9152764785

Scales and comparisons

How big is 131991?

131,991 seconds is equal to 1 day, 12 hours, 39 minutes, 51 seconds.
To count from 1 to 131,991 would take you about twelve 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 131991 cubic inches would be around 4.2 feet tall.

Recreational maths with 131991

131991 backwards is 199131
The number of decimal digits it has is: 6
The sum of 131991's digits is 24
More coming soon!

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The information we have on file for 131991 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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