21989121

21,989,121 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21989121 look like?

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

21989121 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 21989121:

3 × 7 × 11 × 95191

See below for interesting mathematical facts about the number 21989121 from the Numbermatics database.

Names of 21989121

Cardinal: 21989121 can be written as Twenty-one million, nine hundred eighty-nine thousand, one hundred twenty-one.

Scientific notation

Scientific notation: 2.1989121 × 10⁷

Factors of 21989121

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 95212

Divisors of 21989121

Number of divisors d(n): 16
Complete list of divisors:
1 3 7 11 21 33 77 231 95191 285573 666337 1047101 1999011 3141303 7329707 21989121
Sum of all divisors σ(n): 36553728
Sum of proper divisors (its aliquot sum) s(n): 14564607
21989121 is a deficient number, because the sum of its proper divisors (14564607) is less than itself. Its deficiency is 7424514

Bases of 21989121

Binary: 1010011111000011100000001₂
Hexadecimal: 0x14F8701
Base-36: D3AWX

Squares and roots of 21989121

21989121 squared (21989121²) is 483521442352641
21989121 cubed (21989121³) is 10632211501986747618561
The square root of 21989121 is 4689.2559111227
The cube root of 21989121 is 280.1577385019

Scales and comparisons

How big is 21989121?

21,989,121 seconds is equal to 36 weeks, 2 days, 12 hours, 5 minutes, 21 seconds.
To count from 1 to 21,989,121 would take you about two 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 21989121 cubic inches would be around 23.3 feet tall.

Recreational maths with 21989121

21989121 backwards is 12198912
21989121 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21989121's digits is 33
More coming soon!

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The information we have on file for 21989121 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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