21317220

21,317,220 is an even composite number composed of four prime numbers multiplied together.

What does the number 21317220 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 36 divisors.

21317220 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 21317220:

2² × 3² × 5 × 118429

(2 × 2 × 3 × 3 × 5 × 118429)

See below for interesting mathematical facts about the number 21317220 from the Numbermatics database.

Names of 21317220

Cardinal: 21317220 can be written as Twenty-one million, three hundred seventeen thousand, two hundred twenty.

Scientific notation

Scientific notation: 2.131722 × 10⁷

Factors of 21317220

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 118439

Divisors of 21317220

Number of divisors d(n): 36
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 118429 236858 355287 473716 592145 710574 1065861 1184290 1421148 1776435 2131722 2368580 3552870 4263444 5329305 7105740 10658610 21317220
Sum of all divisors σ(n): 64662780
Sum of proper divisors (its aliquot sum) s(n): 43345560
21317220 is an abundant number, because the sum of its proper divisors (43345560) is greater than itself. Its abundance is 22028340

Bases of 21317220

Binary: 1010001010100011001100100₂
Hexadecimal: 0x1454664
Base-36: COWH0

Squares and roots of 21317220

21317220 squared (21317220²) is 454423868528400
21317220 cubed (21317220³) is 9687053578670979048000
The square root of 21317220 is 4617.0575045151
The cube root of 21317220 is 277.2746648943

Scales and comparisons

How big is 21317220?

21,317,220 seconds is equal to 35 weeks, 1 day, 17 hours, 27 minutes.
To count from 1 to 21,317,220 would take you about six 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 21317220 cubic inches would be around 23.1 feet tall.

Recreational maths with 21317220

21317220 backwards is 02271312
21317220 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21317220's digits is 18
More coming soon!

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The information we have on file for 21317220 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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