27067133

Properties

Appears in sequences

• Numbers k such that prime(k) == 2 (mod k).at n=9A023144
• Positive integers n such that the difference between the n-th prime and the sum of the divisors of n is congruent to 1 (mod n).at n=22A111359
• Primes p such that prime(p)=2 (mod p), where prime(p)=A000040(p) is the p-th prime.at n=4A156154
• Prime numbersat n=1686970