DEC RADIX 50

Decimal radix 50 (also known as base 50) is a system of counting that uses numbers that range from 0 to 49. When counting in base 50, instead of counting like we do in regular numbers (0, 1, 2, 3, etc.), you use the number 0 to 49 over and over again. So once you get to 49, the number after that would be 0 again. Just like after counting to 9, the number after that is 10.