/base 10 2147483648 2 returns "Input number does not match the specified base" (2147483648 = 2^31)
/base 12 4bb2308a8 10Returns the same thing 4bb2308a8 is 2^31 in base 12

This should return a more descriptive error letting the user know the inputted value is too large
It would also be nice to change the data type used

Using a BigInteger instead of an Integer should fix this

Solved by #112