2881

2881 is an integer in the natural number sequence, coming after 2880 and before 2882. It is an odd composite number whose prime factorization is 43 × 67, making it a semiprime. Therefore, its positive divisors are 1, 43, 67, and 2881.

In different numeral systems, 2881 can be expressed as decimal 2881, binary 1011010000001, octal 5501, and hexadecimal B41. In Roman numerals it is written as MMDCCCLXXXI.

As a semiprime, 2881 serves as a typical example in number theory of a number that is the product of two distinct primes. It is squarefree and has exactly four divisors: 1, 43, 67, and 2881.

In astronomy, 2881 is the numerical designation assigned to a minor planet in the catalog of numbered minor planets. Objects with such designations are recorded by the Minor Planet Center after discovery and orbital confirmation, and many later receive proper names.

Overall, 2881 is mainly noted for its mathematical properties as a semiprime and for its representations across numeral systems. It does not have widely cited historical or cultural significance beyond these mathematical attributes.