2646

2646 is a natural number that comes after 2645 and before 2647. In decimal notation it is written as 2646.

Mathematically, 2646 is even and composite. Its prime factorization is 2 × 3^3 × 7^2, and it has 24 positive divisors. It is a Harshad (Niven) number in base 10 because the sum of its digits is 18 and 2646 ÷ 18 = 147.

In numeral systems, 2646 is represented as 101001010110 in binary, 0o5126 in octal, and 0xA56 in hexadecimal. In Roman numerals it is written as MMDCXLVI.

As a calendar year, 2646 CE would fall in the 27th century; specific historical events for that year are not established in the present record. The number may also appear in other technical or cataloging contexts as an identifier, model number, or code, depending on the system.