2928200

Appears in sequences

• Least number x such that gcd(phi(x), sigma(x)) = n.at n=24A073815
• Smallest number m such that GCD(a+b,a-b) = n, where a = sigma(m) and b = phi(m).at n=24A077102
• a(n) = the smallest number k such that sigma(k) ends with the same concatenation of digits as n in base 10.at n=24A256632