2872

2872 is a natural number that follows 2871 and precedes 2873. It is an even composite number with prime factorization 2^3 × 359. Its divisors are 1, 2, 4, 8, 359, 718, 1436, and 2872. The sum of its proper divisors is 2528, making 2872 a deficient number. In decimal notation it is 2872; in binary it equals 101100111000, and in hexadecimal it is 0xB38. In Roman numerals, 2872 is MMDCCCLXXII.

As a calendar year, 2872 would be a leap year in the Gregorian calendar because it is divisible by 4 but not by 100, placing it in the 29th century CE (2801–2900). Consequently February would have 29 days.

The number is also notable for its representations in various bases and its factorization structure: it is the product of a small power of two and a prime (2^3 × 359), which gives it a specific divisor pattern of eight total divisors. Its binary and hexadecimal forms reflect this decomposition and are sometimes used in computer science contexts to illustrate base conversions of even numbers with a large odd factor.