1010000011

1010000011 is a binary numeral consisting of ten bits. It is written as 1 0 1 0 0 0 0 0 1 1.

In unsigned binary, this pattern represents the decimal number 643. Its hexadecimal representation is 0x283, and in octal it is 0o1203. These conversions reflect the same value using different numeral bases.

If interpreted as a signed value in two's complement with 10 bits, the pattern corresponds to -381. The sign is indicated by the most significant bit being 1, which is typical of two's-complement encoding for fixed widths.

In computing, such a binary string can function as a bit pattern or bitmask, with set bits at positions corresponding to the 2^0, 2^1, 2^7, and 2^9 places. Depending on the context, it could encode data, an opcode, or flags in a binary protocol, though its meaning is not universal and depends on how many bits are used and what the bits represent.

The sequence is sometimes used in educational materials to illustrate binary-to-decimal and base conversion, as well as two's-complement arithmetic, because it combines a leading 1 with several trailing zeros.