# 918

## 918 is an even composite number composed of three prime numbers multiplied together.

What does the number 918 look like?

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

918 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 918:

### 2 × 33 × 17

(2 × 3 × 3 × 3 × 17)

See below for interesting mathematical facts about the number 918 from the Numbermatics database.

### Names of 918

• Cardinal: 918 can be written as Nine hundred eighteen.

### Scientific notation

• Scientific notation: 9.18 × 102

### Factors of 918

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 22

### Divisors of 918

• Number of divisors d(n): 16
• Complete list of divisors:
• Sum of all divisors σ(n): 2160
• Sum of proper divisors (its aliquot sum) s(n): 1242
• 918 is an abundant number, because the sum of its proper divisors (1242) is greater than itself. Its abundance is 324

### Bases of 918

• Binary: 11100101102
• Base-36: PI

### Squares and roots of 918

• 918 squared (9182) is 842724
• 918 cubed (9183) is 773620632
• The square root of 918 is 30.2985148151
• The cube root of 918 is 9.7188354039

### Scales and comparisons

How big is 918?
• 918 seconds is equal to 15 minutes, 18 seconds.
• To count from 1 to 918 would take you about seven minutes.

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 918 cubic inches would be around 0.8 feet tall.

### Recreational maths with 918

• 918 backwards is 819
• 918 is a Harshad number.
• The number of decimal digits it has is: 3
• The sum of 918's digits is 18
• More coming soon!