2826

2826 is a natural number. It is even and composite. Its prime factorization is 2 × 3^2 × 157, giving it 12 positive divisors. The sum of its proper divisors is 3336, so 2826 is an abundant number with an abundance of 510. It is also a Harshad (Niven) number in base 10, since the sum of its digits is 18 and 2826 is divisible by 18 (2826 ÷ 18 = 157).

In common numeral systems, 2826 has representations such as binary 101100001010 and hexadecimal B0A. In Roman numerals it is written as MMDCCCXXVI.

As a calendar year, 2826 would fall in the 29th century of the Common Era, far in the future relative to the present. Beyond its mathematical properties, 2826 may also appear as a catalog or model number in various contexts, where it functions as an identifying label rather than a mathematical attribute.