# 18906

## 18,906 is an even composite number composed of four prime numbers multiplied together.

What does the number 18906 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

18906 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

## Prime factorization of 18906:

### 2 × 3 × 23 × 137

See below for interesting mathematical facts about the number 18906 from the Numbermatics database.

### Names of 18906

• Cardinal: 18906 can be written as Eighteen thousand, nine hundred six.

### Scientific notation

• Scientific notation: 1.8906 × 104

### Factors of 18906

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 165

### Divisors of 18906

• Number of divisors d(n): 16
• Complete list of divisors:
• Sum of all divisors σ(n): 39744
• Sum of proper divisors (its aliquot sum) s(n): 20838
• 18906 is an abundant number, because the sum of its proper divisors (20838) is greater than itself. Its abundance is 1932

### Bases of 18906

• Binary: 1001001110110102
• Base-36: EL6

### Squares and roots of 18906

• 18906 squared (189062) is 357436836
• 18906 cubed (189063) is 6757700821416
• The square root of 18906 is 137.4990909061
• The cube root of 18906 is 26.6399384969

### Scales and comparisons

How big is 18906?
• 18,906 seconds is equal to 5 hours, 15 minutes, 6 seconds.
• To count from 1 to 18,906 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 18906 cubic inches would be around 2.2 feet tall.

### Recreational maths with 18906

• 18906 backwards is 60981
• The number of decimal digits it has is: 5
• The sum of 18906's digits is 24
• More coming soon!