21639189

21,639,189 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21639189 look like?

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

21639189 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 21639189:

3 × 11 × 13 × 50441

See below for interesting mathematical facts about the number 21639189 from the Numbermatics database.

Names of 21639189

Cardinal: 21639189 can be written as Twenty-one million, six hundred thirty-nine thousand, one hundred eighty-nine.

Scientific notation

Scientific notation: 2.1639189 × 10⁷

Factors of 21639189

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 50468

Divisors of 21639189

Number of divisors d(n): 16
Complete list of divisors:
1 3 11 13 33 39 143 429 50441 151323 554851 655733 1664553 1967199 7213063 21639189
Sum of all divisors σ(n): 33897024
Sum of proper divisors (its aliquot sum) s(n): 12257835
21639189 is a deficient number, because the sum of its proper divisors (12257835) is less than itself. Its deficiency is 9381354

Bases of 21639189

Binary: 1010010100011000000010101₂
Hexadecimal: 0x14A3015
Base-36: CVSWL

Squares and roots of 21639189

21639189 squared (21639189²) is 468254500577721
21639189 cubed (21639189³) is 10132647638101913908269
The square root of 21639189 is 4651.7941699951
The cube root of 21639189 is 278.6636534691

Scales and comparisons

How big is 21639189?

21,639,189 seconds is equal to 35 weeks, 5 days, 10 hours, 53 minutes, 9 seconds.
To count from 1 to 21,639,189 would take you about four days!

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 21639189 cubic inches would be around 23.2 feet tall.

Recreational maths with 21639189

21639189 backwards is 98193612
21639189 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21639189's digits is 39
More coming soon!

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The information we have on file for 21639189 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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