65729

Properties

Appears in sequences

• Lesser of twin primes P(k) and P(k+1) such that Sd(P(k)) + Sd(P(k+1)) = Sd(k) + Sd(k+1), where Sd(x) is the sum of digits of x.at n=13A277111
• Numbers s > 0 such that 8*s^2 + 64*s + 57 is a square.at n=11A387469
• Prime numbersat n=6568