054

054 is a three-digit numeral that can serve as a quantity, code, or identifier across different contexts. In fixed-width numbering systems, including inventory labels, part numbers, and file names, numbers are often written with a leading zero, so 054 is encountered as a standard form.

In mathematics and computing, 054 is equivalent to 54 in decimal notation. In programming languages that use a leading zero to denote octal literals, 054 represents the octal number 54, which equals 44 in decimal.

054 is also used as a designation in naval procurement: Type 054, known as the Jiangkai-class, is a class of Chinese frigates. A follow-on variant, Type 054A, entered service in the 2000s with updated sensors and weapons.

Historically, 054 can denote the year 54 in a given calendar era, commonly written as 54 CE or AD 54, depending on era and convention.

Outside of these, 054 appears in product codes, routing numbers, and other identifiers across industries.