1,218 is an even composite number composed of four prime numbers multiplied together.

What does the number 1218 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

1218 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 1218:

2 × 3 × 7 × 29

See below for interesting mathematical facts about the number 1218 from the Numbermatics database.

Names of 1218

  • Cardinal: 1218 can be written as One thousand, two hundred eighteen.

Scientific notation

  • Scientific notation: 1.218 × 103

Factors of 1218

  • Number of distinct prime factors ω(n): 4
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 41

Divisors of 1218

  • Number of divisors d(n): 16
  • Complete list of divisors:
  • Sum of all divisors σ(n): 2880
  • Sum of proper divisors (its aliquot sum) s(n): 1662
  • 1218 is an abundant number, because the sum of its proper divisors (1662) is greater than itself. Its abundance is 444

Bases of 1218

  • Binary: 100110000102
  • Hexadecimal: 0x4C2
  • Base-36: XU

Squares and roots of 1218

  • 1218 squared (12182) is 1483524
  • 1218 cubed (12183) is 1806932232
  • The square root of 1218 is 34.8998567331
  • The cube root of 1218 is 10.6794551477

Scales and comparisons

How big is 1218?
  • 1,218 seconds is equal to 20 minutes, 18 seconds.
  • To count from 1 to 1,218 would take you about twenty 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 1218 cubic inches would be around 0.9 feet tall.

Recreational maths with 1218

  • 1218 backwards is 8121
  • The number of decimal digits it has is: 4
  • The sum of 1218's digits is 12
  • More coming soon!

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"Number 1218 - Facts about the integer". Numbermatics.com. 2022. Web. 9 August 2022.

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Numbermatics. (2022). Number 1218 - Facts about the integer. Retrieved 9 August 2022, from https://numbermatics.com/n/1218/

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The information we have on file for 1218 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 1218, math, Factors of 1218, curriculum, school, college, exams, university, Prime factorization of 1218, STEM, science, technology, engineering, physics, economics, calculator, one thousand, two hundred eighteen.

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