77428

77,428 is an even composite number composed of three prime numbers multiplied together.

What does the number 77428 look like?

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

77428 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 77428:

22 × 13 × 1489

(2 × 2 × 13 × 1489)

See below for interesting mathematical facts about the number 77428 from the Numbermatics database.


Names of 77428

  • Cardinal: 77428 can be written as Seventy-seven thousand, four hundred twenty-eight.

Scientific notation

  • Scientific notation: 7.7428 × 104

Factors of 77428

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 4
  • Sum of prime factors: 1504

Divisors of 77428

  • Number of divisors d(n): 12
  • Complete list of divisors:
  • Sum of all divisors σ(n): 146020
  • Sum of proper divisors (its aliquot sum) s(n): 68592
  • 77428 is a deficient number, because the sum of its proper divisors (68592) is less than itself. Its deficiency is 8836

Bases of 77428

  • Binary: 100101110011101002
  • Hexadecimal: 0x12E74
  • Base-36: 1NQS

Squares and roots of 77428

  • 77428 squared (774282) is 5995095184
  • 77428 cubed (774283) is 464188229906752
  • The square root of 77428 is 278.2588722755
  • The cube root of 77428 is 42.6218876995

Scales and comparisons

How big is 77428?
  • 77,428 seconds is equal to 21 hours, 30 minutes, 28 seconds.
  • To count from 1 to 77,428 would take you about twenty-one hours.

    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 77428 cubic inches would be around 3.6 feet tall.

Recreational maths with 77428

  • 77428 backwards is 82477
  • The number of decimal digits it has is: 5
  • The sum of 77428's digits is 28
  • More coming soon!

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"Number 77428 - Facts about the integer". Numbermatics.com. 2024. Web. 19 March 2024.

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Numbermatics. (2024). Number 77428 - Facts about the integer. Retrieved 19 March 2024, from https://numbermatics.com/n/77428/

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The information we have on file for 77428 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 77428, math, Factors of 77428, curriculum, school, college, exams, university, Prime factorization of 77428, STEM, science, technology, engineering, physics, economics, calculator, seventy-seven thousand, four hundred twenty-eight.

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