3873

3873 is the natural number that comes after 3872 and before 3874. In mathematics, it is an odd composite number. Its prime factorization is 3 × 1291, with 1291 being prime, which makes 3873 a semiprime. The divisors of 3873 are 1, 3, 1291, and 3873.

In various numeral systems, 3873 can be represented as 111100100001 in binary, and as 0xF21 in hexadecimal. In Roman numerals it is written as MMMDCCCLXXIII. The sum of its decimal digits is 21, so 3873 is not a Harshad number in base 10. It is divisible by 3, since the sum of digits is divisible by 3.

As a modular value, 3873 ≡ 0 (mod 3) and 3873 ≡ 3 (mod 9). The number has exactly four divisors, reflecting its status as a product of two distinct primes.

Without additional context, 3873 may appear in mathematical sequences, catalogues, or as an identifying number in various systems, but it does not have any widely recognized historical events or standard definitions associated with it in common reference works.