0163

0163 is a numeric string that can refer to several things depending on the context. In ordinary decimal notation, it represents the integer 163, with the leading zero generally serving formatting or fixed-width field purposes rather than changing the value.

In computing, a leading zero can indicate octal notation. In languages such as C and in older Python versions, 0163 is interpreted as an octal literal, which evaluates to 115 in decimal (1 × 8^2 + 6 × 8 + 3). Modern Python uses a 0o prefix to denote octal explicitly.

In telecommunications, 0163 is used as a mobile dialing prefix in Germany. Numbers starting with 0163 are mobile numbers within the German numbering plan, part of the broader 01 prefix family used for mobile services.

Beyond numbers, 0163 may appear in other contexts as part of product codes, catalog numbers, or identifiers. As a year, 0163 can denote 163 CE, though historical references typically omit the leading zero in year notation.