1101001001

1101001001 is a binary numeral consisting of ten digits. In unsigned binary interpretation, it represents the decimal value 841. The same value can be expressed in other common bases as hexadecimal 0x349 and octal 0o1511. Notably, 841 is also 29 squared (29^2 = 841), giving an incidental mathematical property of this number.

The bit pattern has ones in positions corresponding to 2^9, 2^8, 2^6, 2^3, and 2^0, i.e., weights 512, 256, 64, 8, and 1. The word contains five set bits, which means it has odd parity. The sequence is not a palindrome in binary, as it does not read the same forward and backward.

In computing and digital logic, a 10-bit value like 1101001001 may appear as a data word, part of a flag or control field, or as a sample value in tutorials and demonstrations of binary arithmetic, bitwise operations, or data encoding. It does not correspond to a widely recognized character encoding or standardized constant on its own, but it serves as a concrete example of a multi-bit binary number and its decimal, hexadecimal, and octal representations.