3009

3009 = 3 x 17 x 59.

3009 is a number with prime factors a, b, and c such that a + b + c, a² + b² + c², and a³ + b³ + c³ are all primes (A176911).

3009 divides 58¹⁶ - 1.

3009 is a member of the crystal ball sequence for hexagonal close-packing (A007202).

Source: OEIS