21078732

21,078,732 is an even composite number composed of four prime numbers multiplied together.

What does the number 21078732 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

21078732 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21078732:

2² × 3 × 149 × 11789

(2 × 2 × 3 × 149 × 11789)

See below for interesting mathematical facts about the number 21078732 from the Numbermatics database.

Names of 21078732

Cardinal: 21078732 can be written as Twenty-one million, seventy-eight thousand, seven hundred thirty-two.

Scientific notation

Scientific notation: 2.1078732 × 10⁷

Factors of 21078732

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 11943

Divisors of 21078732

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 4 6 12 149 298 447 596 894 1788 11789 23578 35367 47156 70734 141468 1756561 3513122 5269683 7026244 10539366 21078732
Sum of all divisors σ(n): 49518000
Sum of proper divisors (its aliquot sum) s(n): 28439268
21078732 is an abundant number, because the sum of its proper divisors (28439268) is greater than itself. Its abundance is 7360536

Bases of 21078732

Binary: 1010000011010001011001100₂
Hexadecimal: 0x141A2CC
Base-36: CJSGC

Squares and roots of 21078732

21078732 squared (21078732²) is 444312942727824
21078732 cubed (21078732³) is 9365553443891151039168
The square root of 21078732 is 4591.1580238541
The cube root of 21078732 is 276.2367743441

Scales and comparisons

How big is 21078732?

21,078,732 seconds is equal to 34 weeks, 5 days, 23 hours, 12 minutes, 12 seconds.
To count from 1 to 21,078,732 would take you about twenty-two 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 21078732 cubic inches would be around 23 feet tall.

Recreational maths with 21078732

21078732 backwards is 23787012
The number of decimal digits it has is: 8
The sum of 21078732's digits is 30
More coming soon!

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The information we have on file for 21078732 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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