21138425

21,138,425 is an odd composite number composed of five prime numbers multiplied together.

What does the number 21138425 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21138425 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21138425:

5² × 7 × 11 × 79 × 139

(5 × 5 × 7 × 11 × 79 × 139)

See below for interesting mathematical facts about the number 21138425 from the Numbermatics database.

Names of 21138425

Cardinal: 21138425 can be written as Twenty-one million, one hundred thirty-eight thousand, four hundred twenty-five.

Scientific notation

Scientific notation: 2.1138425 × 10⁷

Factors of 21138425

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 241

Divisors of 21138425

Number of divisors d(n): 48
Complete list of divisors:
1 5 7 11 25 35 55 77 79 139 175 275 385 395 553 695 869 973 1529 1925 1975 2765 3475 4345 4865 6083 7645 10703 10981 13825 21725 24325 30415 38225 53515 54905 76867 120791 152075 267575 274525 384335 603955 845537 1921675 3019775 4227685 21138425
Sum of all divisors σ(n): 33331200
Sum of proper divisors (its aliquot sum) s(n): 12192775
21138425 is a deficient number, because the sum of its proper divisors (12192775) is less than itself. Its deficiency is 8945650

Bases of 21138425

Binary: 1010000101000101111111001₂
Hexadecimal: 0x1428BF9
Base-36: CL2IH

Squares and roots of 21138425

21138425 squared (21138425²) is 446833011480625
21138425 cubed (21138425³) is 9445346100707330515625
The square root of 21138425 is 4597.6542932241
The cube root of 21138425 is 276.4972874959

Scales and comparisons

How big is 21138425?

21,138,425 seconds is equal to 34 weeks, 6 days, 15 hours, 47 minutes, 5 seconds.
To count from 1 to 21,138,425 would take you about two 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 21138425 cubic inches would be around 23 feet tall.

Recreational maths with 21138425

21138425 backwards is 52483112
The number of decimal digits it has is: 8
The sum of 21138425's digits is 26
More coming soon!

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The information we have on file for 21138425 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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