Base-func
Convert a given integer num into a string representation in the specified radix.
string base(int num, int radix[, int len])$
num
radix
len
Return a string representation in the specified radix
base(34, 2)$ = ; // 100010 base(5248123, 16)$ = ; // 50147B base(5035996273705,10,16)$=; // 0000002147483647