2271

2271 is a natural number that lies between 2270 and 2272. It is odd and composite, with prime factorization 3 × 757. Its positive divisors are 1, 3, 757, and 2271.

In various numeral systems, 2271 is written as decimal 2271; in binary it is 100011011111 and in hexadecimal it is 0x8DF. In Roman numerals it is MMCCLXXI.

Mathematically, because 3 is a prime factor with odd exponent, 2271 cannot be expressed as a sum of two squares. It is congruent to 3 modulo 4.

As a calendar year, 2271 CE would be in the 23rd century of the Common Era, a future period in the Gregorian calendar.

In astronomy, 2271 is the designation of a numbered minor planet (asteroid) in the solar system. Such numbers are assigned sequentially as objects are confirmed and cataloged. The designation 2271 identifies a specific minor planet, distinct from other celestial bodies, and helps astronomers reference its orbital parameters and observation history.