I have always wanted my own constant and now for a short period I have one. Imagine numbers were 'interesting' or 'dull'. The first dull number would be interesting because it was the first dull number so no dull number can exist. So all number are interesting.
Now you would think any interesting number would be notable enough to have its own wikipedia page. The first number without a wikipedia page is 215. This should be notable enough to deserve a wikipedia page. So as long as 215 has no wikipedia page it is dull and thus as the first non notable number it is notable. The paradoxes of wikipedia notability were brought up here.