2953
2953 is a natural number that lies between 2952 and 2954. It is an odd integer and is prime, meaning its only positive divisors are 1 and itself. Its primality is established by testing divisibility only up to the square root of 2953 (about 54), and none of the primes up to 53 divide it. Because 2953 ≡ 1 (mod 4), it can be expressed as a sum of two squares; in fact, 2953 = 53^2 + 12^2.
In different numeral systems, 2953 has these representations. In decimal it is written as 2953. In binary
The digit sum of 2953 is 2 + 9 + 5 + 3 = 19, giving a digital root of
There is no widely noted mathematical constant or calendar-year significance attached to 2953 in standard references.