101111

101111 is a six-digit binary numeral. In base-2, it represents the decimal value 47, since 32 + 8 + 4 + 2 + 1 = 47. Its hexadecimal representation is 2F. The binary string contains five ones and one zero, and ends with a four-run of consecutive ones (101111).

In number theory, 47 is a prime number. As a binary pattern, 101111 has a high density of ones, with a popcount of 5 out of 6 bits and a single zero bit located near the most significant end.

In computing, binary sequences such as 101111 can appear as small data snippets, bit masks, or fields within instruction encodings and memory representations. Six-bit strings are less common in modern architectures, which typically use eight, 16, or 32-bit units, but six-bit sequences are encountered in historical systems, compact encodings, and instructional examples that illustrate binary arithmetic and bitwise operations.

Overall, 101111 is primarily notable as a compact representation of the number 47 in binary notation, illustrating typical binary structure with a run of consecutive ones and a single zero within a short bit pattern.

See also: binary numeral system, hexadecimal notation, prime numbers.