# 66420

## 66,420 is an even composite number composed of four prime numbers multiplied together.

What does the number 66420 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 60 divisors.

66420 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.

## Prime factorization of 66420:

### 22 × 34 × 5 × 41

(2 × 2 × 3 × 3 × 3 × 3 × 5 × 41)

See below for interesting mathematical facts about the number 66420 from the Numbermatics database.

### Names of 66420

• Cardinal: 66420 can be written as Sixty-six thousand, four hundred twenty.

### Scientific notation

• Scientific notation: 6.642 × 104

### Factors of 66420

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 51

### Divisors of 66420

• Number of divisors d(n): 60
• Complete list of divisors:
• Sum of all divisors σ(n): 213444
• Sum of proper divisors (its aliquot sum) s(n): 147024
• 66420 is an abundant number, because the sum of its proper divisors (147024) is greater than itself. Its abundance is 80604

### Bases of 66420

• Binary: 100000011011101002
• Base-36: 1F90

### Squares and roots of 66420

• 66420 squared (664202) is 4411616400
• 66420 cubed (664203) is 293019561288000
• The square root of 66420 is 257.7207791389
• The cube root of 66420 is 40.4979422823

### Scales and comparisons

How big is 66420?
• 66,420 seconds is equal to 18 hours, 27 minutes.
• To count from 1 to 66,420 would take you about eighteen 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 66420 cubic inches would be around 3.4 feet tall.

### Recreational maths with 66420

• 66420 backwards is 02466
• 66420 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 66420's digits is 18
• More coming soon!