2847

2847 is a natural number that follows 2846 and precedes 2848. It is an odd composite number.

Its prime factorization is 2847 = 3 × 13 × 73. The number is squarefree, and its divisors are 1, 3, 13, 39, 73, 219, 949, and 2847.

Because the sum of its digits is 21, 2847 is divisible by 3 but not by 9. Its digital root is 3. This makes it a multiple of 3, while maintaining an odd, non-square structure due to its distinct prime factors.

Euler’s totient function yields φ(2847) = 1728. Since 2847 = 3 × 13 × 73, φ(2847) can be computed as 2847 × (2/3) × (12/13) × (72/73) = 1728.

In various bases, 2847 has the representations: 101100011111 in binary, 0xB1F in hexadecimal, and 5437 in octal. In Roman numerals, it is written as MMDCCCXLVII.

As a mathematical object, 2847 is an odd, squarefree composite with eight divisors. It sits between 2846 and 2848 on the natural number line and is part of the broader study of factoring and divisor structure in integers.