This seems like something trivial would be easy, but I couldn't find a good way to do it.
This is what I came up with:
select convert(numeric,
(select convert(varchar,datepart(yy,getdate())) +
right('0' + convert(varchar,datepart(mm,getdate())), 2) +
right('0' + convert(varchar,datepart(dd,getdate())), 2)
))
EDIT: I know it doesn't need to have a subquery like that, but ignore that =p