86999

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 47 ones.at n=17A031815
• Harmonic mean of digits is 8.at n=12A062185
• Numbers k such that phi(k) - k = phi(k') - k', where k' is the arithmetic derivative of k and phi(k) is the Euler totient function.at n=16A239940
• a(n) is the smallest k such that A342068(k) = n.at n=26A342069