664162

Appears in sequences

• Numbers k such that k and k^2 use only the digits 1, 2, 3, 4 and 6.at n=38A136969
• Numbers k such that k and k^2 use only the digits 1, 2, 4 and 6.at n=12A136992
• Numbers k such that k and k^2 use only the digits 1, 2, 4, 6 and 7.at n=53A136993
• Numbers k such that k and k^2 use only the digits 1, 2, 4, 6 and 8.at n=36A136994