21275128

21,275,128 is an even composite number composed of three prime numbers multiplied together.

What does the number 21275128 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

21275128 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 21275128:

2³ × 7 × 379913

(2 × 2 × 2 × 7 × 379913)

See below for interesting mathematical facts about the number 21275128 from the Numbermatics database.

Names of 21275128

Cardinal: 21275128 can be written as Twenty-one million, two hundred seventy-five thousand, one hundred twenty-eight.

Scientific notation

Scientific notation: 2.1275128 × 10⁷

Factors of 21275128

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 379922

Divisors of 21275128

Number of divisors d(n): 16
Complete list of divisors:
1 2 4 7 8 14 28 56 379913 759826 1519652 2659391 3039304 5318782 10637564 21275128
Sum of all divisors σ(n): 45589680
Sum of proper divisors (its aliquot sum) s(n): 24314552
21275128 is an abundant number, because the sum of its proper divisors (24314552) is greater than itself. Its abundance is 3039424

Bases of 21275128

Binary: 1010001001010000111111000₂
Hexadecimal: 0x144A1F8
Base-36: CNZZS

Squares and roots of 21275128

21275128 squared (21275128²) is 452631071416384
21275128 cubed (21275128³) is 9629783981160710897152
The square root of 21275128 is 4612.4969376683
The cube root of 21275128 is 277.0920467207

Scales and comparisons

How big is 21275128?

21,275,128 seconds is equal to 35 weeks, 1 day, 5 hours, 45 minutes, 28 seconds.
To count from 1 to 21,275,128 would take you about five 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 21275128 cubic inches would be around 23.1 feet tall.

Recreational maths with 21275128

21275128 backwards is 82157212
21275128 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21275128's digits is 28
More coming soon!

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The information we have on file for 21275128 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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