Thursday, May 15, 2014

3225

3225 = 3 x 5 x 5 x 43.

3225 is 100400 in base 5. It is 22533 in base 6.

3225 is the number of primes less than 105 having at least one digit 6 (A091707).

3225 is the sum of the first 41 primes, minus 41 (A101301).

3225 is the number of symmetric 3 x 3 matrices in base 5 with determinant 0.

3225 divides 496 - 1.


Source: What's Special About This Number?

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