749

749 is an odd composite number composed of two prime numbers multiplied together.

What does the number 749 look like?

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

749 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 749:

7 × 107

See below for interesting mathematical facts about the number 749 from the Numbermatics database.


Names of 749

  • Cardinal: 749 can be written as Seven hundred forty-nine.

Scientific notation

  • Scientific notation: 7.49 × 102

Factors of 749

  • Number of distinct prime factors ω(n): 2
  • Total number of prime factors Ω(n): 2
  • Sum of prime factors: 114

Divisors of 749

  • Number of divisors d(n): 4
  • Complete list of divisors:
  • Sum of all divisors σ(n): 864
  • Sum of proper divisors (its aliquot sum) s(n): 115
  • 749 is a deficient number, because the sum of its proper divisors (115) is less than itself. Its deficiency is 634

Bases of 749

  • Binary: 10111011012
  • Hexadecimal: 0x2ED
  • Base-36: KT

Squares and roots of 749

  • 749 squared (7492) is 561001
  • 749 cubed (7493) is 420189749
  • The square root of 749 is 27.3678643669
  • The cube root of 749 is 9.0815631223

Scales and comparisons

How big is 749?
  • 749 seconds is equal to 12 minutes, 29 seconds.
  • To count from 1 to 749 would take you about six 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 749 cubic inches would be around 0.8 feet tall.

Recreational maths with 749

  • 749 backwards is 947
  • The number of decimal digits it has is: 3
  • The sum of 749's digits is 20
  • More coming soon!

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The information we have on file for 749 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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