1021039

Appears in sequences

• The first primorial based variant of arithmetic derivative: a(prime(i)) = A002110(i-1), where prime(i) = A000040(i), a(u*v) = a(u)*v + u*a(v), with a(0) = a(1) = 0.at n=38A328768
• Smallest nonprime that is the n-th prime plus a multiple of the (n-1)-st primorial.at n=7A367992