Decimal
The decimal (base ten or occasionally denary) numeral system has ten as its base. It is the most widely used numeral system, perhaps because a human usually has four fingers and a thumb on each hand, giving a total of ten digits on both hands.
Positional systems
- Binary1
- Ternary1
- Quaternary1
- Quinary1
- Senary1
- Septenary1
- Octal1
- Nonary1
- Decimal1
- Undecimal1
- Duodecimal1
- Base 131
- Hexadecimal1
- Vigesimal1
Numeral systems
Languages
- Englishone
- Germaneins
- Spanishuno
- Swedishett