3,661 is an odd composite number composed of two prime numbers multiplied together.

What does the number 3661 look like?

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

3661 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 3661:

7 × 523

See below for interesting mathematical facts about the number 3661 from the Numbermatics database.

Names of 3661

  • Cardinal: 3661 can be written as Three thousand, six hundred sixty-one.

Scientific notation

  • Scientific notation: 3.661 × 103

Factors of 3661

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 530

Divisors of 3661

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 4192
  • Sum of proper divisors (its aliquot sum) s(n): 531
  • 3661 is a deficient number, because the sum of its proper divisors (531) is less than itself. Its deficiency is 3130

Bases of 3661

  • Binary: 1110010011012
  • Hexadecimal: 0xE4D
  • Base-36: 2TP

Squares and roots of 3661

  • 3661 squared (36612) is 13402921
  • 3661 cubed (36613) is 49068093781
  • The square root of 3661 is 60.5061980297
  • The cube root of 3661 is 15.4122688535

Scales and comparisons

How big is 3661?
  • 3,661 seconds is equal to 1 hour, 1 minute, 1 second.
  • To count from 1 to 3,661 would take you about one second.

    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 3661 cubic inches would be around 1.3 feet tall.

Recreational maths with 3661

  • 3661 backwards is 1663
  • The number of decimal digits it has is: 4
  • The sum of 3661's digits is 16
  • More coming soon!

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The information we have on file for 3661 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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