53003domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = Sum_{d|n} d^2*2^(d-1)*(n/d-1) for n > 0.at n=20A077272Primes having only {3, 5, 0} as digits.at n=22A260223Primes having only {0, 3, 5, 6} as digits.at n=38A386061Prime numbersat n=5409