# 15400

## 15,400 is an even composite number composed of four prime numbers multiplied together.

What does the number 15400 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

15400 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

## Prime factorization of 15400:

### 23 × 52 × 7 × 11

(2 × 2 × 2 × 5 × 5 × 7 × 11)

See below for interesting mathematical facts about the number 15400 from the Numbermatics database.

### Names of 15400

• Cardinal: 15400 can be written as Fifteen thousand, four hundred.

### Scientific notation

• Scientific notation: 1.54 × 104

### Factors of 15400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 25

### Divisors of 15400

• Number of divisors d(n): 48
• Complete list of divisors:
• Sum of all divisors σ(n): 44640
• Sum of proper divisors (its aliquot sum) s(n): 29240
• 15400 is an abundant number, because the sum of its proper divisors (29240) is greater than itself. Its abundance is 13840

### Bases of 15400

• Binary: 111100001010002
• Base-36: BVS

### Squares and roots of 15400

• 15400 squared (154002) is 237160000
• 15400 cubed (154003) is 3652264000000
• The square root of 15400 is 124.0967364599
• The cube root of 15400 is 24.8794193471

### Scales and comparisons

How big is 15400?
• 15,400 seconds is equal to 4 hours, 16 minutes, 40 seconds.
• To count from 1 to 15,400 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 15400 cubic inches would be around 2.1 feet tall.

### Recreational maths with 15400

• 15400 backwards is 00451
• 15400 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 15400's digits is 10
• More coming soon!