757227

Appears in sequences

• 3-nadirs of Omega: numbers k such that Omega(k-3) > Omega(k-2) > Omega(k-1) > Omega(k) < Omega(k+1) < Omega(k+2) < Omega(k+3), where Omega(k) = number of prime factors of k, counting multiplicity.at n=18A076778
• Numbers k such that k and k^2 use only the digits 2, 3, 5, 7 and 9.at n=29A137084