0o11515

0o11515 is a representation of a number in base-8, written with the 0o prefix that signals octal notation in several modern programming languages. The prefix helps distinguish octal literals from decimal or hexadecimal numbers in source code, reducing ambiguity.

When interpreted as an octal value, 0o11515 corresponds to a decimal value of 4941. This is computed by summing the powers of eight for each digit: 1×8^4 + 1×8^3 + 5×8^2 + 1×8^1 + 5×8^0, which equals 4096 + 512 + 320 + 8 + 5 = 4941. In hexadecimal, the same value is 0x134D.

Usage and context vary by programming language. In Python 3, 0o11515 would be a valid octal literal that evaluates to 4941. In other languages, octal literals may be written with a leading zero (as in older C or C++ dialects), such as 011515, though the exact rules differ by language and version. The 0o prefix was introduced to improve readability and to avoid misinterpretation with decimal numbers, particularly in languages that distinguish multiple numeric bases.

Notes on interpretation: octal digits are restricted to 0 through 7. If any digit outside this range appears (for example, an 8 or 9), the literal would be invalid in octal notation. Octal representations appear in various computing contexts, including low-level programming and certain data-encoding schemes, though they are less common in modern high-level application code. See also octal numeral system and integer literals.