1428

1,428 is an even composite number composed of four prime numbers multiplied together.

What does the number 1428 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

1428 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 1428:

22 × 3 × 7 × 17

(2 × 2 × 3 × 7 × 17)

See below for interesting mathematical facts about the number 1428 from the Numbermatics database.


Names of 1428

  • Cardinal: 1428 can be written as One thousand, four hundred twenty-eight.

Scientific notation

  • Scientific notation: 1.428 × 103

Factors of 1428

  • Number of distinct prime factors ω(n): 4
  • Total number of prime factors Ω(n): 5
  • Sum of prime factors: 29

Divisors of 1428

  • Number of divisors d(n): 24
  • Complete list of divisors:
  • Sum of all divisors σ(n): 4032
  • Sum of proper divisors (its aliquot sum) s(n): 2604
  • 1428 is an abundant number, because the sum of its proper divisors (2604) is greater than itself. Its abundance is 1176

Bases of 1428

  • Binary: 101100101002
  • Hexadecimal: 0x594
  • Base-36: 13O

Squares and roots of 1428

  • 1428 squared (14282) is 2039184
  • 1428 cubed (14283) is 2911954752
  • The square root of 1428 is 37.7888872553
  • The cube root of 1428 is 11.2609769405

Scales and comparisons

How big is 1428?
  • 1,428 seconds is equal to 23 minutes, 48 seconds.
  • To count from 1 to 1,428 would take you about twenty-three 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 1428 cubic inches would be around 0.9 feet tall.

Recreational maths with 1428

  • 1428 backwards is 8241
  • The number of decimal digits it has is: 4
  • The sum of 1428's digits is 15
  • More coming soon!

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"Number 1428 - Facts about the integer". Numbermatics.com. 2020. Web. 27 November 2020.

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The information we have on file for 1428 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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