101010000001

101010000001 is a binary numeral consisting of 12 bits. The digits, read from most significant to least significant, are 101010000001. In unsigned binary notation, this value equals 2689 in decimal and 0xA81 in hexadecimal.

The bit pattern begins with an alternating sequence (101010) and ends with a run of zeros followed by a trailing 1. The Hamming weight, or the number of one bits, is four. The set bits are at the most significant position (2^11), the 2^9 position, the 2^7 position, and the least significant bit (2^0). This combination yields a compact 12-bit value that can be used in contexts requiring fixed-width binary representations.

Potential uses for this sequence include serving as a test vector in digital logic and circuit design, or as a small identifier in systems that employ 12-bit words. Its mixed pattern—an initial alternating prefix followed by zeros and a final 1—can help in examining bit-toggling behavior, pattern recognition, or boundary conditions in bit-manipulation routines.

There is no widely known meaning or standardized assignment associated with this exact binary string. It is primarily of interest as an illustrative example of a 12-bit binary value, demonstrating conversions between binary, decimal, and hexadecimal representations.

See also: binary numeral system; hexadecimal notation; test vectors; bit patterns.