4209

4209 is a natural number that follows 4208 and precedes 4210. In mathematics, it is the product of three distinct primes and serves as a Smith number.

Prime factorization: 4209 = 3 × 23 × 61; since the prime factors are distinct, it is squarefree. Possible divisors are 1, 3, 23, 61, 69, 183, 1403, and 4209.

Sum of its digits is 4 + 2 + 0 + 9 = 15, which equals the sum of the digits of its prime factors (3, 23, 61) = 3 + 2 + 3 + 6 + 1 = 15; thus it is a Smith number, a composite number whose digits sum matches the digits sum of its prime factors.

Representations in common bases include binary 1000001110001, octal 10161, and hexadecimal 0x1071.

In astronomy, 4209 is used as the numeric designation for a minor planet in the catalog of small Solar System bodies. The number is one of many such designations assigned to objects discovered and tracked by observatories, reflecting the structured naming system used for minor planets.