3572100

Appears in sequences

• Even refactorable numbers k such that the number r of odd divisors is odd, the number s of even divisors is even, both r and s are divisors of k and k is the first number for which the triple (r,s,t) occurs, where t is the number of divisors of k.at n=16A120359
• Integers n such that if you insert between each of their digits either "*" (times), "^" (exponentiation), or "nothing" (so that two or more digits are merged to form an integer), then you can recover n in a nontrivial way (however, two "^" mustn't be adjacent - you must avoid decompositions containing a^b^c).at n=14A156322
• The p(n) sequence that is associated with the Zeta triangle A160474.at n=3A160478
• Perfect powers k^m, m > 1, omega(k) > 1, such that A053669(k) > A006530(k) that are not also products of primorials, where omega = A001221.at n=31A380452
• Powers k^m, m > 1, where k is neither squarefree nor squareful, and has a primorial kernel but is not a product of primorials.at n=27A389682