48821

Properties

Appears in sequences

• Fifth term of strong prime sextets: p(m-3)-p(m-4) > p(m-2)-p(m-3) > p(m-1)-p(m-2) > p(m)-p(m-1) > p(m+1)-p(m).at n=16A054817
• Primes such that the sum of their digits and the sum of the reciprocals of their digits is also prime.at n=22A064779
• Non-palindromic primes which on subtracting their reversal gives perfect cubes.at n=23A080178
• Primes p1 such that p1^3+p2^2=pp are average of twin primes. p1 and p2 consecutive primes, p1 < p2.at n=29A138735
• Lesser of twin primes p1 such that p1^3 + p2^2 are average of twin primes. p1 and p2 twin primes, p1 < p2.at n=6A139778
• Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1111-0100 pattern in any orientation.at n=11A146406
• Numbers n such that with b=n*(2n-1) two remainders x and y are defined via x = 2^(b-1) -1 mod b and y = (2*n-1)^(b-1) - 1 mod b which satisfy x==y==0 (mod n) and y-x=n.at n=5A190638
• Initial members of prime quadruples (n, n+2, n+36, n+38).at n=30A248367
• Primes whose sum of reciprocal of digits is a prime.at n=24A266815
• Primes p such that p+2, (p+1)||p and (p+1)||(p+2) are primes (where || denotes concatenation in base 10).at n=43A309934
• Primes p, with k digits, such that the Sum_{i=1..k} (p without its i-th digit)/(its i-th digit) is a prime.at n=6A346206
• Prime numbersat n=5021