36593

Appears in sequences

• For n>0, a(n) is the least quasi-Carmichael number to base n; a(0) = least composite squarefree integer.at n=18A029590
• Numbers n such that phi(phi(n)) + sigma(sigma(n)) = phi(sigma(n)) + sigma(phi(n)), where phi=A000010 is Euler's totient function and sigma=A000203 is the sum of divisors function.at n=6A066850
• Numbers n such that (n-1)^3 + (n+1)^3 is a taxi-cab number (A001235).at n=47A272910