# 18225

## 18,225 is an odd composite number composed of two prime numbers multiplied together.

What does the number 18225 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 21 divisors.

18225 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of twenty-one divisors.

## Prime factorization of 18225:

### 36 × 52

(3 × 3 × 3 × 3 × 3 × 3 × 5 × 5)

See below for interesting mathematical facts about the number 18225 from the Numbermatics database.

### Names of 18225

• Cardinal: 18225 can be written as Eighteen thousand, two hundred twenty-five.

### Scientific notation

• Scientific notation: 1.8225 × 104

### Factors of 18225

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8

### Divisors of 18225

• Number of divisors d(n): 21
• Complete list of divisors:
• Sum of all divisors σ(n): 33883
• Sum of proper divisors (its aliquot sum) s(n): 15658
• 18225 is a deficient number, because the sum of its proper divisors (15658) is less than itself. Its deficiency is 2567

### Bases of 18225

• Binary: 1000111001100012
• Base-36: E29

### Squares and roots of 18225

• 18225 squared (182252) is 332150625
• 18225 cubed (182253) is 6053445140625
• 18225 is a perfect square number. Its square root is 135
• The cube root of 18225 is 26.3161596439

### Scales and comparisons

How big is 18225?
• 18,225 seconds is equal to 5 hours, 3 minutes, 45 seconds.
• To count from 1 to 18,225 would take you about five 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 18225 cubic inches would be around 2.2 feet tall.

### Recreational maths with 18225

• 18225 backwards is 52281
• The number of decimal digits it has is: 5
• The sum of 18225's digits is 18
• More coming soon!