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

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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