978

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

What does the number 978 look like?

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

978 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 978:

2 × 3 × 163

See below for interesting mathematical facts about the number 978 from the Numbermatics database.


Names of 978

  • Cardinal: 978 can be written as Nine hundred seventy-eight.

Scientific notation

  • Scientific notation: 9.78 × 102

Factors of 978

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 168

Divisors of 978

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 1968
  • Sum of proper divisors (its aliquot sum) s(n): 990
  • 978 is an abundant number, because the sum of its proper divisors (990) is greater than itself. Its abundance is 12

Bases of 978

  • Binary: 11110100102
  • Hexadecimal: 0x3D2
  • Base-36: R6

Squares and roots of 978

  • 978 squared (9782) is 956484
  • 978 cubed (9783) is 935441352
  • The square root of 978 is 31.2729915423
  • The cube root of 978 is 9.9261222181

Scales and comparisons

How big is 978?
  • 978 seconds is equal to 16 minutes, 18 seconds.
  • To count from 1 to 978 would take you about eight 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 978 cubic inches would be around 0.8 feet tall.

Recreational maths with 978

  • 978 backwards is 879
  • The number of decimal digits it has is: 3
  • The sum of 978's digits is 24
  • More coming soon!

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"Number 978 - Facts about the integer". Numbermatics.com. 2021. Web. 26 January 2021.

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Numbermatics. (2021). Number 978 - Facts about the integer. Retrieved 26 January 2021, from https://numbermatics.com/n/978/

Chicago style:
Numbermatics. 2021. "Number 978 - Facts about the integer". https://numbermatics.com/n/978/

The information we have on file for 978 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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