4353

4353 is an integer. It factors as 4353 = 3 × 1451, where 1451 is a prime; thus 4353 is the product of two primes and is squarefree. The positive divisors are 1, 3, 1451, and 4353.

In common representations, 4353 equals 2^12 + 2^8 + 1, so its binary representation is 1000100000001_2 and its hexadecimal representation is 0x1101. In decimal form, it remains 4353.

Number-theoretic properties: 4353 is odd and divisible by 3. It is congruent to 1 modulo 4. Because it contains the prime 3 (which is congruent to 3 mod 4) to an odd exponent, 4353 cannot be written as a sum of two squares. The Euler totient function gives φ(4353) = (3−1)(1451−1) = 2900, and the sum of divisors is σ(4353) = (1+3)(1+1451) = 5808.

Usage: as a semiprime with distinct prime factors, 4353 is sometimes cited in introductory number theory as an example of a semiprime and of the arithmetic of numbers with two prime factors. In calendar terms, 4353 CE would be a future year and the number has no widely recognized historical significance.