233 is a prime number. It is a Sophie Germain prime because 2 x 233 + 1 = 467 is also a prime.
233 is the 13th Fibonacci number.
233 is the only known Fibonacci prime whose sum of digits is a Fibonacci number: 2 + 3 + 3 = 8.
233 is the only known Fibonacci prime whose sum of digits is a Fibonacci number: 2 + 3 + 3 = 8.
233 has a representation as a sum of two squares: 233 = 82 + 132.
233 is the smallest number with the property that it and its neighbors can be written as a sum of two squares and therefore can be the hypotenuse of a Pythagorean triangle: 2332 = 1052 + 2082.
2233 - 3 is a prime.
Had Ray Bradbury used the metric system, he may have called his novel Celsius 233 instead of Fahrenheit 451.
Source: Number Gossip
233 is the smallest number with the property that it and its neighbors can be written as a sum of two squares and therefore can be the hypotenuse of a Pythagorean triangle: 2332 = 1052 + 2082.
2233 - 3 is a prime.
Had Ray Bradbury used the metric system, he may have called his novel Celsius 233 instead of Fahrenheit 451.
Source: Number Gossip
