# 20131520

## 20,131,520 is an even composite number composed of four prime numbers multiplied together.

What does the number 20131520 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 56 divisors.

20131520 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.

## Prime factorization of 20131520:

### 26 × 5 × 53 × 1187

(2 × 2 × 2 × 2 × 2 × 2 × 5 × 53 × 1187)

See below for interesting mathematical facts about the number 20131520 from the Numbermatics database.

### Names of 20131520

• Cardinal: 20131520 can be written as Twenty million, one hundred thirty-one thousand, five hundred twenty.

### Scientific notation

• Scientific notation: 2.013152 × 107

### Factors of 20131520

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1247

### Divisors of 20131520

• Number of divisors d(n): 56
• Complete list of divisors:
• Sum of all divisors σ(n): 48883824
• Sum of proper divisors (its aliquot sum) s(n): 28752304
• 20131520 is an abundant number, because the sum of its proper divisors (28752304) is greater than itself. Its abundance is 8620784

### Bases of 20131520

• Binary: 10011001100101110110000002
• Base-36: BZHKW

### Squares and roots of 20131520

• 20131520 squared (201315202) is 405278097510400
• 20131520 cubed (201315203) is 8158864125592567808000
• The square root of 20131520 is 4486.8162431729
• The cube root of 20131520 is 272.0354625043

### Scales and comparisons

How big is 20131520?
• 20,131,520 seconds is equal to 33 weeks, 2 days, 5 minutes, 20 seconds.
• To count from 1 to 20,131,520 would take you about forty-nine 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 20131520 cubic inches would be around 22.7 feet tall.

### Recreational maths with 20131520

• 20131520 backwards is 02513102
• The number of decimal digits it has is: 8
• The sum of 20131520's digits is 14
• More coming soon!