0x2123

0x2123 is a hexadecimal numeral commonly used in computing and digital systems. As a decimal value, it equals 8,483. In binary it is 0010 0001 0010 0011, representing a 16-bit quantity that can be stored as two bytes: 0x21 and 0x23.

The 0x prefix denotes hexadecimal notation in many programming languages, including C, C++, Java, JavaScript, Python, and Rust. Hex literals like 0x2123 are typically used for representing numeric constants, memory addresses, or encoded data. In a 16-bit context, 0x2123 denotes the unsigned integer 8,483. When stored in memory, endianness affects byte order: in little-endian systems the value appears as 0x23 0x21, while in big-endian systems it appears as 0x21 0x23.

Context is important for interpretation. Without additional information, 0x2123 is simply a numeric literal. It should not be confused with Unicode code points, which use a different notation (for example U+2123), and whose meaning depends on the specific character and font in use.

Examples of usage include declaring constants, initializing data structures, or encoding small values in low-level protocols and hardware interfaces. In many languages, evaluating or printing the literal 0x2123 will yield the decimal value 8483.