637330

Appears in sequences

• Numbers k that divide the average of prime(k-1) and prime(k+1).at n=13A066828
• Numbers n such that prime(n) == -7 (mod n).at n=22A092049
• Pentagonal numbers for which both the sum of the digits and the product of the digits are pentagonal numbers.at n=36A117711
• Integers n such that prime(n-1) + prime(n+1) is a multiple of n.at n=19A260989
• Numbers k such that floor(prime(k)/k) < floor(prime(k+1)/(k+1)).at n=28A308082