# 6420

## 6,420 is an even composite number composed of four prime numbers multiplied together.

What does the number 6420 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

6420 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

## Prime factorization of 6420:

### 22 × 3 × 5 × 107

(2 × 2 × 3 × 5 × 107)

See below for interesting mathematical facts about the number 6420 from the Numbermatics database.

### Names of 6420

• Cardinal: 6420 can be written as Six thousand, four hundred twenty.

### Scientific notation

• Scientific notation: 6.42 × 103

### Factors of 6420

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 117

### Divisors of 6420

• Number of divisors d(n): 24
• Complete list of divisors:
• Sum of all divisors σ(n): 18144
• Sum of proper divisors (its aliquot sum) s(n): 11724
• 6420 is an abundant number, because the sum of its proper divisors (11724) is greater than itself. Its abundance is 5304

### Bases of 6420

• Binary: 11001000101002
• Hexadecimal: 0x1914
• Base-36: 4YC

### Squares and roots of 6420

• 6420 squared (64202) is 41216400
• 6420 cubed (64203) is 264609288000
• The square root of 6420 is 80.1249024959
• The cube root of 6420 is 18.5856751771

### Scales and comparisons

How big is 6420?
• 6,420 seconds is equal to 1 hour, 47 minutes.
• To count from 1 to 6,420 would take you about forty-seven 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 6420 cubic inches would be around 1.5 feet tall.

### Recreational maths with 6420

• 6420 backwards is 0246
• 6420 is a Harshad number.
• The number of decimal digits it has is: 4
• The sum of 6420's digits is 12
• More coming soon!

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The information we have on file for 6420 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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