21920625

21,920,625 is an odd composite number composed of three prime numbers multiplied together.

What does the number 21920625 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 50 divisors.

21920625 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of fifty divisors.

Prime factorization of 21920625:

3⁴ × 5⁴ × 433

(3 × 3 × 3 × 3 × 5 × 5 × 5 × 5 × 433)

See below for interesting mathematical facts about the number 21920625 from the Numbermatics database.

Names of 21920625

Cardinal: 21920625 can be written as Twenty-one million, nine hundred twenty thousand, six hundred twenty-five.

Scientific notation

Scientific notation: 2.1920625 × 10⁷

Factors of 21920625

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 9
Sum of prime factors: 441

Divisors of 21920625

Number of divisors d(n): 50
Complete list of divisors:
1 3 5 9 15 25 27 45 75 81 125 135 225 375 405 433 625 675 1125 1299 1875 2025 2165 3375 3897 5625 6495 10125 10825 11691 16875 19485 32475 35073 50625 54125 58455 97425 162375 175365 270625 292275 487125 811875 876825 1461375 2435625 4384125 7306875 21920625
Sum of all divisors σ(n): 41013434
Sum of proper divisors (its aliquot sum) s(n): 19092809
21920625 is a deficient number, because the sum of its proper divisors (19092809) is less than itself. Its deficiency is 2827816

Bases of 21920625

Binary: 1010011100111101101110001₂
Hexadecimal: 0x14E7B71
Base-36: D1U29

Squares and roots of 21920625

21920625 squared (21920625²) is 480513800390625
21920625 cubed (21920625³) is 10533162825687744140625
The square root of 21920625 is 4681.9467105041
The cube root of 21920625 is 279.8665392879

Scales and comparisons

How big is 21920625?

21,920,625 seconds is equal to 36 weeks, 1 day, 17 hours, 3 minutes, 45 seconds.
To count from 1 to 21,920,625 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 21920625 cubic inches would be around 23.3 feet tall.

Recreational maths with 21920625

21920625 backwards is 52602912
21920625 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21920625's digits is 27
More coming soon!

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The information we have on file for 21920625 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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