0x258

0x258 is a hexadecimal numeral used in computing as a literal value. The prefix 0x indicates that the following digits are in base 16. The value equals 600 in decimal (2×256 + 5×16 + 8).

In many programming languages, 0x258 is parsed as an integer constant. It can be used in expressions, as a constant, or as a memory address or bitmask in contexts where hexadecimal notation is conventional.

Examples of usage: in JavaScript and Python, 0x258 evaluates to 600. In hexadecimal arithmetic, 0x258 + 0x5 equals 0x25D.

In contexts such as memory maps or hardware registers, 0x258 may denote a specific address or offset, and its meaning depends on the system’s documentation.

Relation to Unicode: 0x258 can be mistaken for U+0258, the Unicode code point for a Latin small letter e with stroke. Unicode code points are written as U+0258 and do not use the 0x prefix.

See also: hexadecimal, 0x prefix, hex literals in programming.