83731

Appears in sequences

• Numbers with more than one prime factor that do not end in 0 and contain as substrings every maximal prime power dividing them.at n=2A059402
• a(n) = G_n(5), where G_n(k) is the Goodstein function defined in A266201.at n=28A266204
• Least number x such that x^n has n digits equal to k. Case k = 9.at n=31A285456