The vigesimal or base 20 numeral system is based on twenty (in the same way in which the decimal numeral system is based on ten).
hexadecimal (base 16) | 120 | 220 | 320 | 420 | 520 | 620 | 720 | 820 | 920 | a20 |
base 7 | 17 | 27 | 37 | 47 | 57 | 67 | 107 | 117 | 127 | 137 |
base 7 | 17 | 27 | 37 | 47 | 57 | 67 | 107 | 117 | 127 | 137 |
hexadecimal (base 16) | 120 | 220 | 320 | 420 | 520 | 620 | 720 | 820 | 920 | a20 |
hexadecimal (base 16) | 120 | 220 | 320 | 420 | 520 | 620 | 720 | 820 | 920 | a20 |
---|---|---|---|---|---|---|---|---|---|---|
base 7 | 17 | 27 | 37 | 47 | 57 | 67 | 107 | 117 | 127 | 137 |