13521981

13,521,981 is an odd composite number composed of four prime numbers multiplied together.

What does the number 13521981 look like?

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

13521981 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 13521981:

3 × 11 × 101 × 4057

See below for interesting mathematical facts about the number 13521981 from the Numbermatics database.

Names of 13521981

Cardinal: 13521981 can be written as Thirteen million, five hundred twenty-one thousand, nine hundred eighty-one.

Scientific notation

Scientific notation: 1.3521981 × 10⁷

Factors of 13521981

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 4172

Divisors of 13521981

Number of divisors d(n): 16
Complete list of divisors:
1 3 11 33 101 303 1111 3333 4057 12171 44627 133881 409757 1229271 4507327 13521981
Sum of all divisors σ(n): 19867968
Sum of proper divisors (its aliquot sum) s(n): 6345987
13521981 is a deficient number, because the sum of its proper divisors (6345987) is less than itself. Its deficiency is 7175994

Bases of 13521981

Binary: 110011100101010000111101₂
Hexadecimal: 0xCE543D
Base-36: 81TML

Squares and roots of 13521981

13521981 squared (13521981²) is 182843970164361
13521981 cubed (13521981³) is 2472412690527056319141
The square root of 13521981 is 3677.2246327903
The cube root of 13521981 is 238.2393198025

Scales and comparisons

How big is 13521981?

13,521,981 seconds is equal to 22 weeks, 2 days, 12 hours, 6 minutes, 21 seconds.
To count from 1 to 13,521,981 would take you about thirty-three weeks!

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 13521981 cubic inches would be around 19.9 feet tall.

Recreational maths with 13521981

13521981 backwards is 18912531
The number of decimal digits it has is: 8
The sum of 13521981's digits is 30
More coming soon!

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The information we have on file for 13521981 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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