4,221 is an odd composite number composed of three prime numbers multiplied together.

What does the number 4221 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

4221 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 4221:

32 × 7 × 67

(3 × 3 × 7 × 67)

See below for interesting mathematical facts about the number 4221 from the Numbermatics database.

Names of 4221

  • Cardinal: 4221 can be written as Four thousand, two hundred twenty-one.

Scientific notation

  • Scientific notation: 4.221 × 103

Factors of 4221

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 77

Divisors of 4221

  • Number of divisors d(n): 12
  • Complete list of divisors:
  • Sum of all divisors σ(n): 7072
  • Sum of proper divisors (its aliquot sum) s(n): 2851
  • 4221 is a deficient number, because the sum of its proper divisors (2851) is less than itself. Its deficiency is 1370

Bases of 4221

  • Binary: 10000011111012
  • Hexadecimal: 0x107D
  • Base-36: 399

Squares and roots of 4221

  • 4221 squared (42212) is 17816841
  • 4221 cubed (42213) is 75204885861
  • The square root of 4221 is 64.9692234831
  • The cube root of 4221 is 16.1611322443

Scales and comparisons

How big is 4221?
  • 4,221 seconds is equal to 1 hour, 10 minutes, 21 seconds.
  • To count from 1 to 4,221 would take you about ten 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 4221 cubic inches would be around 1.3 feet tall.

Recreational maths with 4221

  • 4221 backwards is 1224
  • 4221 is a Harshad number.
  • The number of decimal digits it has is: 4
  • The sum of 4221's digits is 9
  • More coming soon!

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The information we have on file for 4221 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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