2861

2861 is a natural number that follows 2860 and precedes 2862. In mathematics, it is a prime number, meaning its only positive divisors are 1 and itself. It is odd and congruent to 1 modulo 4, a property that aligns with its expression as a sum of two squares.

A known representation of 2861 as a sum of squares is 50^2 + 19^2 = 2861, illustrating its 1 mod 4 prime type. The existence of such a representation is consistent with the theorem that primes congruent to 1 mod 4 can be written as the sum of two squares.

In common numeral bases, 2861 equals 101100101101 in binary, B2D in hexadecimal, and 5455 in octal. Its Roman numeral form is MMDCCCLXI. These base representations reflect the same value expressed in different numbering systems used in various mathematical, computing, and historical contexts.