Duodecimal (base 12) to Base 21

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The duodecimal system (also known as base 12 or dozenal) is a positional notation numeral system using twelve as its base.

conversion table

duodecimal (base 12)112212312412512612712812912a12
base 21121221321421521621721821921a21
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base 21 is a positional numeral system with twenty-one as its base. It uses 21 different digits for representing numbers. The digits for base 21 could be 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f, g, h, i, j, and k.

conversion table

base 21121221321421521621721821921a21
duodecimal (base 12)112212312412512612712812912a12