0o10025

0o10025 is an octal numeral literal. The prefix 0o is used in several programming languages to indicate that the digits that follow are written in base 8, rather than decimal. This form helps distinguish octal values from decimal and hexadecimal representations.

In decimal, 0o10025 equals 4117. It converts to hexadecimal 0x1015 and to binary 1000000010101. These base conversions illustrate how the same value is represented across numeral systems: octal 10025 corresponds to decimal 4117, which is hex 0x1015 and binary 1000000010101.

In practical use, 0o10025 is recognized as an octal literal in languages that support the 0o prefix, most notably Python 3. For example, evaluating 0o10025 in Python yields the integer 4117. Conversions can also be performed by functions or parsing utilities, such as int('10025', 8) in Python, which returns 4117. Some older languages, such as C and C++, denote octal numbers with a leading zero (for example 010025), but the 0o prefix is not valid in standard C or C++ without explicit Unicode or extension support. The explicit 0o prefix reduces ambiguity compared with leading-zero octal notation.

See also: numeral systems, octal, hexadecimal, binary, Python (programming language).