0o10644

0o10644 is an octal numeral written with the 0o prefix, a convention used in several programming languages (notably Python 3) to indicate that the following digits are in base 8. In octal, each digit represents a power of eight, using digits from 0 to 7.

Interpreted as an octal value, 0o10644 equals 1 × 8^4 + 0 × 8^3 + 6 × 8^2 + 4 × 8^1 + 4 × 8^0, which computes to 4096 + 0 + 384 + 32 + 4 = 4516 in decimal. Its hexadecimal representation is 0x11A4, and its binary form is 0b1000110100100 (ignoring leading zeros).

Usage and context: The 0o prefix is used to distinguish octal literals from decimal and hexadecimal values in languages like Python 3. Historically, many languages used a leading zero to denote octal notation (for example, 01064 in C). Octal numbers are sometimes encountered in contexts such as bitmasks, permissions, or other low-level constants where octal alignment aligns with specific grouping of bits. However, 0o10644 itself is simply a numeric constant and not a standard, widely recognized permission mask or file mode by itself.

See also: Octal numeral system, base conversions, Python 0o literals, file permission notation in octal.