Okay, I've done as much research into my "National 47 Day" avatar as I care to do. I feel relatively confident that any clues I give are accurate and true, but because I intend to present them in riddle form, they may be misleading (mwa-ha-ha )
It will satisfy the requirement of the OP that it be a target of 47's.
It will also satisfy my personal requirement of keeping a duck as my avatar.
All depending on one's point of view when looking at the picture.
The picture I will use is not some obscure screenshot, nor a photoshopped image. It will be cropped from a mainstream image from the Hitman game franchise.
So....riddle me this Batman,
I am a human target with no face and no name.
But you can identify me by my 10 little digits.
Can you find me?
Okay, it took me over an hour to come up with that one tiny, lame riddle so I'm ditching the riddle approach.