13881

13,881 is an odd composite number composed of three prime numbers multiplied together.

What does the number 13881 look like?

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

13881 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 13881:

3 × 7 × 661

See below for interesting mathematical facts about the number 13881 from the Numbermatics database.

Names of 13881

Cardinal: 13881 can be written as Thirteen thousand, eight hundred eighty-one.

Scientific notation

Scientific notation: 1.3881 × 10⁴

Factors of 13881

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 671

Divisors of 13881

Number of divisors d(n): 8
Complete list of divisors:
1 3 7 21 661 1983 4627 13881
Sum of all divisors σ(n): 21184
Sum of proper divisors (its aliquot sum) s(n): 7303
13881 is a deficient number, because the sum of its proper divisors (7303) is less than itself. Its deficiency is 6578

Bases of 13881

Binary: 11011000111001₂
Hexadecimal: 0x3639
Base-36: APL

Squares and roots of 13881

13881 squared (13881²) is 192682161
13881 cubed (13881³) is 2674621076841
The square root of 13881 is 117.8176557227
The cube root of 13881 is 24.0329408779

Scales and comparisons

How big is 13881?

13,881 seconds is equal to 3 hours, 51 minutes, 21 seconds.
To count from 1 to 13,881 would take you about three 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 13881 cubic inches would be around 2 feet tall.

Recreational maths with 13881

13881 backwards is 18831
13881 is a Harshad number.
The number of decimal digits it has is: 5
The sum of 13881's digits is 21
More coming soon!

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The information we have on file for 13881 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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