20421550

20,421,550 is an even composite number composed of three prime numbers multiplied together.

What does the number 20421550 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

20421550 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 20421550:

2 × 5² × 408431

(2 × 5 × 5 × 408431)

See below for interesting mathematical facts about the number 20421550 from the Numbermatics database.

Names of 20421550

Cardinal: 20421550 can be written as Twenty million, four hundred twenty-one thousand, five hundred fifty.

Scientific notation

Scientific notation: 2.042155 × 10⁷

Factors of 20421550

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 408438

Divisors of 20421550

Number of divisors d(n): 12
Complete list of divisors:
1 2 5 10 25 50 408431 816862 2042155 4084310 10210775 20421550
Sum of all divisors σ(n): 37984176
Sum of proper divisors (its aliquot sum) s(n): 17562626
20421550 is a deficient number, because the sum of its proper divisors (17562626) is less than itself. Its deficiency is 2858924

Bases of 20421550

Binary: 1001101111001101110101110₂
Hexadecimal: 0x1379BAE
Base-36: C5PDA

Squares and roots of 20421550

20421550 squared (20421550²) is 417039704402500
20421550 cubed (20421550³) is 8516597175440873875000
The square root of 20421550 is 4519.0209116577
The cube root of 20421550 is 273.3356219651

Scales and comparisons

How big is 20421550?

20,421,550 seconds is equal to 33 weeks, 5 days, 8 hours, 39 minutes, 10 seconds.
To count from 1 to 20,421,550 would take you about fifty 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 20421550 cubic inches would be around 22.8 feet tall.

Recreational maths with 20421550

20421550 backwards is 05512402
The number of decimal digits it has is: 8
The sum of 20421550's digits is 19
More coming soon!

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The information we have on file for 20421550 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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