# 13240

## 13,240 is an even composite number composed of three prime numbers multiplied together.

What does the number 13240 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

13240 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

## Prime factorization of 13240:

### 23 × 5 × 331

(2 × 2 × 2 × 5 × 331)

See below for interesting mathematical facts about the number 13240 from the Numbermatics database.

### Names of 13240

• Cardinal: 13240 can be written as Thirteen thousand, two hundred forty.

### Scientific notation

• Scientific notation: 1.324 × 104

### Factors of 13240

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 338

### Divisors of 13240

• Number of divisors d(n): 16
• Complete list of divisors:
• Sum of all divisors σ(n): 29880
• Sum of proper divisors (its aliquot sum) s(n): 16640
• 13240 is an abundant number, because the sum of its proper divisors (16640) is greater than itself. Its abundance is 3400

### Bases of 13240

• Binary: 110011101110002
• Base-36: A7S

### Squares and roots of 13240

• 13240 squared (132402) is 175297600
• 13240 cubed (132403) is 2320940224000
• The square root of 13240 is 115.0651989091
• The cube root of 13240 is 23.6571629721

### Scales and comparisons

How big is 13240?
• 13,240 seconds is equal to 3 hours, 40 minutes, 40 seconds.
• To count from 1 to 13,240 would take you about three 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 13240 cubic inches would be around 2 feet tall.

### Recreational maths with 13240

• 13240 backwards is 04231
• 13240 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 13240's digits is 10
• More coming soon!