# 15872

## 15,872 is an even composite number composed of two prime numbers multiplied together.

What does the number 15872 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 20 divisors.

15872 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of twenty divisors.

## Prime factorization of 15872:

### 29 × 31

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 31)

See below for interesting mathematical facts about the number 15872 from the Numbermatics database.

### Names of 15872

• Cardinal: 15872 can be written as Fifteen thousand, eight hundred seventy-two.

### Scientific notation

• Scientific notation: 1.5872 × 104

### Factors of 15872

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 33

### Divisors of 15872

• Number of divisors d(n): 20
• Complete list of divisors:
• Sum of all divisors σ(n): 32736
• Sum of proper divisors (its aliquot sum) s(n): 16864
• 15872 is an abundant number, because the sum of its proper divisors (16864) is greater than itself. Its abundance is 992

### Bases of 15872

• Binary: 111110000000002
• Base-36: C8W

### Squares and roots of 15872

• 15872 squared (158722) is 251920384
• 15872 cubed (158723) is 3998480334848
• The square root of 15872 is 125.9841259841
• The cube root of 15872 is 25.1310452191

### Scales and comparisons

How big is 15872?
• 15,872 seconds is equal to 4 hours, 24 minutes, 32 seconds.
• To count from 1 to 15,872 would take you about four 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 15872 cubic inches would be around 2.1 feet tall.

### Recreational maths with 15872

• 15872 backwards is 27851
• The number of decimal digits it has is: 5
• The sum of 15872's digits is 23
• More coming soon!