21868125

21,868,125 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21868125 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

21868125 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21868125:

3 × 5⁴ × 107 × 109

(3 × 5 × 5 × 5 × 5 × 107 × 109)

See below for interesting mathematical facts about the number 21868125 from the Numbermatics database.

Names of 21868125

Cardinal: 21868125 can be written as Twenty-one million, eight hundred sixty-eight thousand, one hundred twenty-five.

Scientific notation

Scientific notation: 2.1868125 × 10⁷

Factors of 21868125

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 224

Divisors of 21868125

Number of divisors d(n): 40
Complete list of divisors:
1 3 5 15 25 75 107 109 125 321 327 375 535 545 625 1605 1635 1875 2675 2725 8025 8175 11663 13375 13625 34989 40125 40875 58315 66875 68125 174945 200625 204375 291575 874725 1457875 4373625 7289375 21868125
Sum of all divisors σ(n): 37113120
Sum of proper divisors (its aliquot sum) s(n): 15244995
21868125 is a deficient number, because the sum of its proper divisors (15244995) is less than itself. Its deficiency is 6623130

Bases of 21868125

Binary: 1010011011010111001011101₂
Hexadecimal: 0x14DAE5D
Base-36: D0PJX

Squares and roots of 21868125

21868125 squared (21868125²) is 478214891015625
21868125 cubed (21868125³) is 10457663013591064453125
The square root of 21868125 is 4676.3367072955
The cube root of 21868125 is 279.6429334541

Scales and comparisons

How big is 21868125?

21,868,125 seconds is equal to 36 weeks, 1 day, 2 hours, 28 minutes, 45 seconds.
To count from 1 to 21,868,125 would take you about two weeks!

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 21868125 cubic inches would be around 23.3 feet tall.

Recreational maths with 21868125

21868125 backwards is 52186812
The number of decimal digits it has is: 8
The sum of 21868125's digits is 33
More coming soon!

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The information we have on file for 21868125 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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