692

692 is the natural number that follows 691 and precedes 693. It is even and composite, and it occurs in various mathematical contexts as a representative example of numbers with mixed prime factors.

In prime factorization, 692 = 2^2 × 173, where 173 is a prime. Its positive divisors are 1, 2, 4, 173, 346, and 692. The sum of all divisors is 1218, so the sum of proper divisors is 526; since 526 < 692, the number is deficient.

In different bases, 692 is represented as 1010110100 in binary, 1264 in octal, 2B4 in hexadecimal, and DCXCII in Roman numerals. In decimal, its digits sum to 17, and it is divisible by 4 and by 173.

If 692 is treated as a year in the Julian calendar or in the proleptic Gregorian calendar, it would be a leap year, reflecting the rule that years divisible by 4 are leap years in these systems.