857304

Appears in sequences

• Numbers k such that, in the prime factorization of k, the product of exponents equals the product of prime factors.at n=32A054412
• Numbers whose 3 prime powers are a permutation of each other. Numbers with 3 distinct prime factors whose 3 exponents are a permutation of the 3 bases.at n=8A113620
• Numbers of the form Product_i p_i^e_i, where the p_i are distinct primes and the e_i are a permutation of the p_i.at n=22A122406
• Number of hex trees with n edges and no branches of length 1.at n=11A126322
• a(n) = (n^3 + n^2)*3^n.at n=6A129003
• Numbers of the form i^j * j^k * k^i, where i,j,k > 1.at n=20A259406
• Numbers such that (sum + product) of all their prime factors equals (sum + product) of all exponents in their prime factorization.at n=40A272818
• Numbers m such that Product(1 + p_i) = Product(1 + e_i), where m = Product((p_i)^e_i).at n=46A272858
• Numbers m such that sigma(Product(p_j)) = sigma(Product(e_j)), where m = Product((p_i)^e_i) and sigma = A000203.at n=41A272859
• Numbers n such that, in the prime factorization of n, the list of the exponents is a rotation of the list of the prime factors.at n=18A276372
• Integers that can be written m = k*tau(k) = q*tau(q) where (k, q) is a primitive solution of this equation and tau(k) is the number of divisors of k.at n=22A338384
• Numbers k such that, in the prime factorization of k, the least common multiple of the exponents equals the least common multiple of the prime factors.at n=42A356433