225461

Properties

Appears in sequences

• a(n) is the smallest prime m such that prod(m) = n*length(m)*sum(m) where prod(m) is the product of the digits of m, length(m) is the number of digits of m, sum(m) is the sum of the digits of m; or 0 if no such m exists.at n=3A064023
• E.g.f.: A(x) = exp(x*A(x)^3*exp(x*A(x)^4*exp(x*A(x)^5*exp(x*A(x)^6*exp(...))))), an infinite power tower.at n=5A141363
• Primes p such that (5*p+2)/3 is the square of a prime.at n=25A357199
• Prime numbersat n=20059