10000101

10000101 is an eight-bit binary numeral. In base-2, it represents the decimal value 133 when interpreted as an unsigned integer.

If interpreted as an eight-bit two's complement signed value, the most significant bit is 1, indicating a negative number; the value is -123.

The hexadecimal form of this byte is 0x85. In character encodings, 0x85 maps differently across systems: in ISO-8859-1 (Latin-1) and Unicode, the byte 0x85 corresponds to the control character U+0085 (NEL). In Windows-1252, 0x85 maps to the ellipsis character U+2026.

In practical computing, 10000101 can serve as a simple bit pattern for illustrating bitwise operations. The bits set are at positions 7, 2, and 0, so it can function as a small bitmask or flag field in tutorials and examples.

Numeric trivia: 133 is a composite number equal to 7 multiplied by 19. The binary string 10000101 is commonly used in teaching materials and exercises as a concise example of an 8-bit value, demonstrating conversions between binary, decimal, and hexadecimal, as well as basic bit-level interpretation.

See also: binary numeral system, two's complement, hexadecimal notation, character encodings such as ISO-8859-1 and Windows-1252.