22235661

Appears in sequences

• Integers of the form Product p_j^k_j = Product k_j^p_j; p_j in A000040.at n=31A008478
• Numbers k such that if k = Product p_i^e_i then p_i = e_i for all i.at n=10A048102
• Number of polynomial functions from Z to Z/nZ.at n=21A058067
• Write n in decimal, omit 0's, raise each digit k to k-th power and multiply.at n=37A061510
• Numbers whose prime factors are raised to the powers of themselves.at n=5A113853
• 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=28A122406
• a(p_1^e_1*p_2^e_2*.....*p_m^e_m) = (p_1^p_1)^e_1*(p_2^p^2)^e_2*.....*(p_m^p_m)^e_m where p_1^e_1*p_2^e_2*.....*p_m^e_m is the prime decomposition of n.at n=20A133482
• Numbers that are products of distinct terms in A000312.at n=23A156223
• Integers that are half of their arithmetic derivatives.at n=8A165558
• If n = product(p_i^e_i), a(n) = product((p_i^e_i)^(p_i^e_i)).at n=20A190125
• Numbers representable as x^x * y^y, with x > y > 1.at n=10A228174
• 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=21A276372
• a(n) is the smallest multiple of n that is a term of A072873.at n=20A365636