693

693 is a natural number that follows 692 and precedes 694. In Roman numerals it is written as DCXCIII. In common numeral bases, it appears as 1010110101 in binary, 1265 in octal, and 2B5 in hexadecimal.

In mathematics, 693 has the prime factorization 3^2 × 7 × 11, making it an odd composite number. It has twelve positive divisors: 1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, and 693.

As a calendar year, the number 693 is used to designate times in both the ancient and medieval periods, such as the year 693 CE or 693 BCE in historical records. Beyond chronology, 693 also appears in various cataloging and identification systems, including model numbers, route designations, or other numeric identifiers.