0o1004

0o1004 refers to a number represented in octal (base-8) numeral system. The '0o' prefix is a common convention to denote an octal literal in programming languages like Python. The digits following the prefix, '1004', are the octal representation of the number. To convert this octal number to its decimal (base-10) equivalent, we multiply each digit by the corresponding power of 8 and sum the results. In this case, 1 * 8^3 + 0 * 8^2 + 0 * 8^1 + 4 * 8^0 = 1 * 512 + 0 * 64 + 0 * 8 + 4 * 1 = 512 + 0 + 0 + 4 = 516. Therefore, 0o1004 in octal is equal to 516 in decimal. Octal representation is sometimes used in computing, particularly in older systems or for representing file permissions, as it groups bits into sets of three, which aligns well with the binary structure of computers.