kevinyan815

function toBaseN(num, base) {
  if (num === 0) {
    return '0';
  }
  var digits = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
  var len = Math.min(digits.length, base);
  var result = ''; 
  while (num > 0) {
    result = digits[num % len] + result;
    num = parseInt(num / len, 10);