21439128

21,439,128 is an even composite number composed of four prime numbers multiplied together.

What does the number 21439128 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

21439128 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 21439128:

2³ × 3 × 23 × 38839

(2 × 2 × 2 × 3 × 23 × 38839)

See below for interesting mathematical facts about the number 21439128 from the Numbermatics database.

Names of 21439128

Cardinal: 21439128 can be written as Twenty-one million, four hundred thirty-nine thousand, one hundred twenty-eight.

Scientific notation

Scientific notation: 2.1439128 × 10⁷

Factors of 21439128

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 38867

Divisors of 21439128

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 38839 77678 116517 155356 233034 310712 466068 893297 932136 1786594 2679891 3573188 5359782 7146376 10719564 21439128
Sum of all divisors σ(n): 55929600
Sum of proper divisors (its aliquot sum) s(n): 34490472
21439128 is an abundant number, because the sum of its proper divisors (34490472) is greater than itself. Its abundance is 13051344

Bases of 21439128

Binary: 1010001110010001010011000₂
Hexadecimal: 0x1472298
Base-36: CRIJC

Squares and roots of 21439128

21439128 squared (21439128²) is 459636209400384
21439128 cubed (21439128³) is 9854199526769635825152
The square root of 21439128 is 4630.2405985003
The cube root of 21439128 is 277.8022159951

Scales and comparisons

How big is 21439128?

21,439,128 seconds is equal to 35 weeks, 3 days, 3 hours, 18 minutes, 48 seconds.
To count from 1 to 21,439,128 would take you about four 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 21439128 cubic inches would be around 23.2 feet tall.

Recreational maths with 21439128

21439128 backwards is 82193412
The number of decimal digits it has is: 8
The sum of 21439128's digits is 30
More coming soon!

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The information we have on file for 21439128 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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