Is there easy way to convert numeric to date?

For example:

If I have, 

	a = as.Date("2010-03-04")

And, if run

> as.numeric(a)
 [1] 14672

Is there any function that I can use to convert 14672 back to the date.

Thx in advance, 
Brijesh

--------------------------------------------------------------------------
This message w/attachments (message) may be privileged, ...{{dropped:30}}

