How to Convert Hexatrigesimal to Vigesimal
To convert from Hexatrigesimal (base 36) to Vigesimal (base 20), first convert to decimal, then convert from decimal to Vigesimal.
About Hexatrigesimal
Uses all alphanumeric characters. Uses digits: 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ
About Vigesimal
Maya numeral system. Uses digits: 0123456789ABCDEFGHIJ