# 188

## 188 is an even composite number composed of two prime numbers multiplied together.

What does the number 188 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

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

## Prime factorization of 188:

### 22 × 47

(2 × 2 × 47)

See below for interesting mathematical facts about the number 188 from the Numbermatics database.

### Names of 188

• Cardinal: 188 can be written as One hundred eighty-eight.

### Scientific notation

• Scientific notation: 1.88 × 102

### Factors of 188

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 49

### Divisors of 188

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 336
• Sum of proper divisors (its aliquot sum) s(n): 148
• 188 is a deficient number, because the sum of its proper divisors (148) is less than itself. Its deficiency is 40

### Bases of 188

• Binary: 101111002
• Base-36: 58

### Squares and roots of 188

• 188 squared (1882) is 35344
• 188 cubed (1883) is 6644672
• The square root of 188 is 13.7113092009
• The cube root of 188 is 5.7286543161

### Scales and comparisons

How big is 188?
• 188 seconds is equal to 3 minutes, 8 seconds.
• To count from 1 to 188 would take you about thirty-four seconds.

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 188 cubic inches would be around 0.5 feet tall.

### Recreational maths with 188

• 188 backwards is 881
• The number of decimal digits it has is: 3
• The sum of 188's digits is 17
• More coming soon!