# 423

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

What does the number 423 look like?

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

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

## Prime factorization of 423:

### 32 × 47

(3 × 3 × 47)

See below for interesting mathematical facts about the number 423 from the Numbermatics database.

### Names of 423

• Cardinal: 423 can be written as Four hundred twenty-three.

### Scientific notation

• Scientific notation: 4.23 × 102

### Factors of 423

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 50

### Divisors of 423

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 624
• Sum of proper divisors (its aliquot sum) s(n): 201
• 423 is a deficient number, because the sum of its proper divisors (201) is less than itself. Its deficiency is 222

### Bases of 423

• Binary: 1101001112
• Base-36: BR

### Squares and roots of 423

• 423 squared (4232) is 178929
• 423 cubed (4233) is 75686967
• The square root of 423 is 20.5669638013
• The cube root of 423 is 7.5066607495

### Scales and comparisons

How big is 423?
• 423 seconds is equal to 7 minutes, 3 seconds.
• To count from 1 to 423 would take you about three 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 423 cubic inches would be around 0.6 feet tall.

### Recreational maths with 423

• 423 backwards is 324
• 423 is a Harshad number.
• The number of decimal digits it has is: 3
• The sum of 423's digits is 9
• More coming soon!