0x1B9

0x1B9 is a hexadecimal numeral. The prefix 0x is a conventional marker used in many programming languages to denote numbers written in base 16. The value of 0x1B9 is 441 in decimal. In binary, it is 0001 1011 1001, which corresponds to 12 bits.

In software development, 0x1B9 commonly appears as a numeric constant. It may be assigned to variables, used in bitwise operations, or included in offsets and masks when addressing memory or hardware registers. For example, in C or Java, a programmer might declare int x = 0x1B9; to express the value 441 directly, avoiding decimal literals.

The exact interpretation of 0x1B9 depends on context. In some specifications, it could stand for a register address, a diagnostic code, or a device-specific identifier. There is no widely recognized meaning for 0x1B9 beyond its role as a hexadecimal representation of the number 441.

When encountered in documentation or code, it is usually helpful to convert it to decimal or binary to understand its size and alignment, especially in low-level programming where bitfields and addresses matter. Relative to 0x100, 0x1B9 sits 65 units above that boundary, illustrating how hexadecimal notation compactly encodes larger values.

See also: hexadecimal, memory address, binary numeral system, bitwise operations.