0b0001001101110001

0b0001001101110001 is a binary literal representing a 16-bit unsigned integer. In hexadecimal form it is 0x1371, and it equals the decimal value 4977. The bit pattern is 0001 0011 0111 0001, which has seven bits set (positions 12, 9, 8, 6, 5, 4, and 0, if counting from the least significant bit as 0).

In memory, the value can be stored as two bytes: big-endian order would be 0x13 0x71, while little-endian order would be 0x71 0x13. This reflects common distinctions in how multi-byte values are arranged in computer systems.

Binary literals like 0b0001001101110001 are used in programming to express bit patterns directly. They are convenient for bitwise operations, masking, flag fields, and low-level hardware interfacing, where precise control of individual bits is required. The exact interpretation of the pattern depends on the surrounding software context, such as whether the value represents a numeric quantity, a set of feature flags, or a protocol bit field.

Usage varies by language. Many modern languages support binary literals with the 0b prefix (for example, Python, JavaScript, Rust, and C++14). Others may require alternative representations or do not support binary literals at all.