33 Mathematics Facts : the largest positive integer that cannot be expressed as a sum of different triangular numbers. the smallest odd repdigit that is not a prime number. the sum of the first four positive factorials. the sum of the sum of the divisors of the first 6 positive integers. equal to the sum of the squares of the digits of its own square in bases 9, 16 and 31. For numbers greater than 1, this is a rare property to have in more than 1 base. the smallest integer such that it and the next two integers all have the same number of divisors. the first member of the first cluster of three semiprimes (33, 34, 35); the next such cluster is 85, 86, 87. the smallest diophantine number which has yet to be represented in the form a + b + c, where a, b and c are integers.
34 is the tenth number in the Fibonacci Sequence. There were 34 States in the US at the start of the American Civil War. There are 34 islands in the Mediterranean.