63013

Appears in sequences

• Composite numbers n such that the distinct digits in n and the distinct digits in the proper divisors of n are the same.at n=28A237713
• G.f. A(x) satisfies: A(x) = x + A(x)^2 - R(A(x)^2) + sqrt( A(x)^2 - R(A(x)^2) ), where R(A(x)) = x, and A(x) = Sum_{n>=1} a(n)*x^n/2^A274715(n).at n=10A274714
• Numbers k such that the set of all the decimal digits of k is the same as the set of all the decimal digits of the proper divisors of k.at n=29A282755