21421725

21,421,725 is an odd composite number composed of five prime numbers multiplied together.

What does the number 21421725 look like?

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

21421725 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 21421725:

3 × 5² × 13 × 127 × 173

(3 × 5 × 5 × 13 × 127 × 173)

See below for interesting mathematical facts about the number 21421725 from the Numbermatics database.

Names of 21421725

Cardinal: 21421725 can be written as Twenty-one million, four hundred twenty-one thousand, seven hundred twenty-five.

Scientific notation

Scientific notation: 2.1421725 × 10⁷

Factors of 21421725

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 321

Divisors of 21421725

Number of divisors d(n): 48
Complete list of divisors:
1 3 5 13 15 25 39 65 75 127 173 195 325 381 519 635 865 975 1651 1905 2249 2595 3175 4325 4953 6747 8255 9525 11245 12975 21971 24765 33735 41275 56225 65913 109855 123825 168675 285623 329565 549275 856869 1428115 1647825 4284345 7140575 21421725
Sum of all divisors σ(n): 38664192
Sum of proper divisors (its aliquot sum) s(n): 17242467
21421725 is a deficient number, because the sum of its proper divisors (17242467) is less than itself. Its deficiency is 4179258

Bases of 21421725

Binary: 1010001101101111010011101₂
Hexadecimal: 0x146DE9D
Base-36: CR53X

Squares and roots of 21421725

21421725 squared (21421725²) is 458890301975625
21421725 cubed (21421725³) is 9830221854088795453125
The square root of 21421725 is 4628.3609409811
The cube root of 21421725 is 277.7270279137

Scales and comparisons

How big is 21421725?

21,421,725 seconds is equal to 35 weeks, 2 days, 22 hours, 28 minutes, 45 seconds.
To count from 1 to 21,421,725 would take you about twenty-one 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 21421725 cubic inches would be around 23.1 feet tall.

Recreational maths with 21421725

21421725 backwards is 52712412
The number of decimal digits it has is: 8
The sum of 21421725's digits is 24
More coming soon!

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The information we have on file for 21421725 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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