0x2A3F

0x2A3F is a hexadecimal literal used in many programming languages to represent a numerical value. The prefix 0x signals that the digits that follow are in base 16, as opposed to decimal (base 10). This notation is common in languages such as C, C++, Java, JavaScript, and Python.

In decimal terms, 0x2A3F equals 10815. The value is derived from the place values in base 16: 2 × 16^3 + 10 × 16^2 + 3 × 16 + 15. The digits 0-9 are used for values zero through nine, and the letters A-F (representing 10 through 15) are used for higher values within each hex digit.

Common uses of a literal like 0x2A3F include representing constants in source code, specifying bit masks, or acting as an address or pointer in low-level programming contexts. The exact interpretation depends on the language and the surrounding code. For example, in a language that treats the literal as an integer, 0x2A3F is simply the integer value 10815; in a language that permits pointers, it could be interpreted as a memory address, subject to the program’s address space and safety checks.

In some graphics or embedded systems, a four-digit hex value can appear as a 16-bit color or as part of a compact data encoding in 5-6-5 RGB formats, though 0x2A3F is not by itself a standard color name. Overall, 0x2A3F is a concise representation of a numeric value commonly encountered in technical and software contexts.