78337

Appears in sequences

• Numbers n such that sigma(n)/tau(n) is a perfect number.at n=16A219179
• Product of all the parts in the Goldbach partitions (p,q) of 2n such that p + q = 2n, p <= q, and p,q prime (or 1 if no Goldbach partition of 2n exists).at n=18A337568