199272950

Appears in sequences

• The floor(1.001*x)-perfect numbers, where f-perfect numbers for an arithmetical function f are defined in A066218.at n=6A066239
• Numbers k whose abundance is 20: sigma(k) - 2*k = 20.at n=16A223611
• Numbers k such that sigma(k) == 0 (mod k+10).at n=17A274565