1803

1,803 is an odd composite number composed of two prime numbers multiplied together.

What does the number 1803 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

1803 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 1803:

3 × 601

See below for interesting mathematical facts about the number 1803 from the Numbermatics database.


Names of 1803

  • Cardinal: 1803 can be written as One thousand, eight hundred three.

Scientific notation

  • Scientific notation: 1.803 × 103

Factors of 1803

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 604

Divisors of 1803

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 2408
  • Sum of proper divisors (its aliquot sum) s(n): 605
  • 1803 is a deficient number, because the sum of its proper divisors (605) is less than itself. Its deficiency is 1198

Bases of 1803

  • Binary: 111000010112
  • Hexadecimal: 0x70B
  • Base-36: 1E3

Squares and roots of 1803

  • 1803 squared (18032) is 3250809
  • 1803 cubed (18033) is 5861208627
  • The square root of 1803 is 42.4617474911
  • The cube root of 1803 is 12.1711582423

Scales and comparisons

How big is 1803?
  • 1,803 seconds is equal to 30 minutes, 3 seconds.
  • To count from 1 to 1,803 would take you about thirty 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 1803 cubic inches would be around 1 feet tall.

Recreational maths with 1803

  • 1803 backwards is 3081
  • The number of decimal digits it has is: 4
  • The sum of 1803's digits is 12
  • More coming soon!

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"Number 1803 - Facts about the integer". Numbermatics.com. 2020. Web. 26 September 2020.

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The information we have on file for 1803 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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