# 133

## 133 is an odd composite number composed of two prime numbers multiplied together.

What does the number 133 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

133 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 133:

### 7 × 19

See below for interesting mathematical facts about the number 133 from the Numbermatics database.

### Names of 133

• Cardinal: 133 can be written as One hundred thirty-three.

### Scientific notation

• Scientific notation: 1.33 × 102

### Factors of 133

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 26

### Divisors of 133

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 160
• Sum of proper divisors (its aliquot sum) s(n): 27
• 133 is a deficient number, because the sum of its proper divisors (27) is less than itself. Its deficiency is 106

### Bases of 133

• Binary: 100001012
• Base-36: 3P

### Squares and roots of 133

• 133 squared (1332) is 17689
• 133 cubed (1333) is 2352637
• The square root of 133 is 11.5325625947
• The cube root of 133 is 5.1044687221

### Scales and comparisons

How big is 133?
• 133 seconds is equal to 2 minutes, 13 seconds.
• To count from 1 to 133 would take you about six 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 133 cubic inches would be around 0.4 feet tall.

### Recreational maths with 133

• 133 backwards is 331
• 133 is a Harshad number.
• The number of decimal digits it has is: 3
• The sum of 133's digits is 7
• More coming soon!