3636

3636 is a natural number that follows 3635 and precedes 3637. Its prime factorization is 2^2 × 3^2 × 101, making it a composite number. It is divisible by 4, 9, 12, 18, 36, and 101, and by any product of these factors. The positive divisors of 3636 are 1, 2, 3, 4, 6, 9, 12, 18, 36, 101, 202, 303, 404, 606, 909, 1212, 1818, and 3636. The sum of its digits is 18, and 3636 ÷ 18 = 202, so it is a Harshad (Niven) number in base 10.

As a year or identifier, 3636 may denote a Gregorian calendar year in discussions of fiction or speculative timelines, typically treated as a far-future date. More broadly, the four-digit sequence 3636 is used as a code or designation in various industries, including as model numbers, catalog identifiers, part numbers, or serial codes. It can also appear as a postal or administrative code in some systems, or simply as a numerical label in lists.

There are no widely recognized events, persons, or places inherently associated with the number 3636. Context is required to determine its specific meaning in any given usage.