42

42 is an even composite number composed of three prime numbers multiplied together.

What does the number 42 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

42 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 42:

2 × 3 × 7

See below for interesting mathematical facts about the number 42 from the Numbermatics database.


Names of 42

  • Cardinal: 42 can be written as Forty-two.

Scientific notation

  • Scientific notation: 4.2 × 101

Factors of 42

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 12

Divisors of 42

  • Number of divisors d(n): 8
  • Complete list of divisors:
    1 2 3 6 7 14 21 42
  • Sum of all divisors σ(n): 96
  • Sum of proper divisors (its aliquot sum) s(n): 54
  • 42 is an abundant number, because the sum of its proper divisors (54) is greater than itself. Its abundance is 12

Bases of 42

  • Binary: 1010102
  • Hexadecimal: 0x2A
  • Base-36: 16

Squares and roots of 42

  • 42 squared (422) is 1764
  • 42 cubed (423) is 74088
  • The square root of 42 is 6.4807406985
  • The cube root of 42 is 3.4760266449

Scales and comparisons

How big is 42?
  • A cube with a volume of 42 cubic inches would be around 0.3 feet tall.

Recreational maths with 42

  • 42 backwards is 24
  • 42 is a Harshad number.
  • The number of decimal digits it has is: 2
  • The sum of 42's digits is 6
  • More coming soon!

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"Number 42 - Facts about the integer". Numbermatics.com. 2024. Web. 25 July 2024.

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The information we have on file for 42 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!

Keywords: Divisors of 42, math, Factors of 42, curriculum, school, college, exams, university, Prime factorization of 42, STEM, science, technology, engineering, physics, economics, calculator, forty-two.

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