21328839

21,328,839 is an odd composite number composed of three prime numbers multiplied together.

What does the number 21328839 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 24 divisors.

21328839 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21328839:

3⁵ × 7 × 12539

(3 × 3 × 3 × 3 × 3 × 7 × 12539)

See below for interesting mathematical facts about the number 21328839 from the Numbermatics database.

Names of 21328839

Cardinal: 21328839 can be written as Twenty-one million, three hundred twenty-eight thousand, eight hundred thirty-nine.

Scientific notation

Scientific notation: 2.1328839 × 10⁷

Factors of 21328839

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 7
Sum of prime factors: 12549

Divisors of 21328839

Number of divisors d(n): 24
Complete list of divisors:
1 3 7 9 21 27 63 81 189 243 567 1701 12539 37617 87773 112851 263319 338553 789957 1015659 2369871 3046977 7109613 21328839
Sum of all divisors σ(n): 36516480
Sum of proper divisors (its aliquot sum) s(n): 15187641
21328839 is a deficient number, because the sum of its proper divisors (15187641) is less than itself. Its deficiency is 6141198

Bases of 21328839

Binary: 1010001010111001111000111₂
Hexadecimal: 0x14573C7
Base-36: CP5FR

Squares and roots of 21328839

21328839 squared (21328839²) is 454919373087921
21328839 cubed (21328839³) is 9702902066573199853719
The square root of 21328839 is 4618.3156020351
The cube root of 21328839 is 277.3250321431

Scales and comparisons

How big is 21328839?

21,328,839 seconds is equal to 35 weeks, 1 day, 20 hours, 40 minutes, 39 seconds.
To count from 1 to 21,328,839 would take you about six 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 21328839 cubic inches would be around 23.1 feet tall.

Recreational maths with 21328839

21328839 backwards is 93882312
The number of decimal digits it has is: 8
The sum of 21328839's digits is 36
More coming soon!

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The information we have on file for 21328839 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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