050

050 is a three-digit numeral consisting of the digits 0, 5, and 0. In standard decimal notation, it denotes the integer fifty. Like many numerals, its precise meaning can depend on the system or context in which it is used.

In computing, a leading zero often marks an octal literal in many C-family languages. In that usage, 050 is octal for decimal 40. Some languages treat leading zeros as invalid syntax or require explicit base prefixes, such as 0o50 in Python 3, so the literal 050 may not be valid in all environments.

In telecommunications, Japan uses 050 as a prefix for IP telephone numbers. The 050 numbers are allocated within Japan's numbering framework and are commonly used by VoIP providers; administration is handled by the relevant regulatory authority, the Ministry of Internal Affairs and Communications.

Outside of numeric notation, 050 appears as a simple identifier in product names, model codes, or catalog numbers, and can be used as a route or service code in various systems. As a standalone string, it has no fixed meaning beyond its function as code or value in a given context.