0713

0713 is a four‑digit sequence that can function as a number, a date, or an identifier in various systems. In decimal notation it denotes the integer 713, while in contexts where a leading zero indicates octal notation, 0713 is interpreted as an octal literal. In that case it equals decimal 459 (7 × 64 + 1 × 8 + 3).

Dates are a common usage: when written as a month/day format, 07/13 typically represents July 13 in the United States; in many European and other regions, 13/07 would denote July 13. The four-digit form with a leading zero is also used in fixed-width date stamps or file names to maintain uniform length.

As a historical reference, the year 713 CE falls in the early medieval period. In the Julian calendar, it was a common year (not a leap year).

In Roman numerals, the decimal number 713 is written as DCCXIII.

Beyond mathematics and history, 0713 appears in cataloging and inventory as a code or model number, batch identifier, or other serial designation. It is also encountered in computing and data systems where fixed-width numeric fields or particular formatting conventions are required.