They really messed up most of the things you memorized. (I guess you're one of those who said old MD5, SHA1 is unbreakable.) lol
I'll take this as your official PSA that you are engaged in breaking Bitcoin's legacy addresses security.
Now, can you calculate the range size inside which you can find, on average, one address which is as good as this?
19vkiEakRjXGdd8qKkMV4nu9NuuEYzkFxy
I am really interested in your response. Is it one in 2**32? Maybe 1 in 2**160?
Or maybe 2**67.96? Something else?