Number Gossip

(Enter a number and I'll tell you everything you wanted to know about it but were afraid to ask.)

Unique Properties of 233

  • 233 is the smallest number with the property that it and its neighbors can be written as a sum of 2 squares, and therefore can be the hypotenuse of a Pythagorean triangle
  • 233 is the number of maximal planar graphs with ten vertices

Rare Properties of 233

Fibonacci

Common Properties of 233

Deficient
Odd
Odious
Prime
Square-free