2039

2039 is the year 2039 CE; it is the 39th year of the 21st century. The number 2039 is prime. In Roman numerals, 2039 is MMXXXIX.

In the Gregorian calendar, 2039 is a common year with 365 days.

As a mathematical integer, 2039 has no positive divisors other than 1 and itself, i.e., it is prime. Its binary representation is 11111110111.

In other calendar systems, 2039 CE roughly corresponds to years 5799–5800 in the Hebrew calendar, with the exact mapping depending on the date of Rosh Hashanah.

In culture and media, 2039 is sometimes used as a near-future horizon year in speculative fiction and discussions about long-term planning, but it does not have a fixed, central canon.