encoding - how to encode int with base32 in sql server 2008 -

i looking encode int base32 string in sql server 2008.

any suggestions of built-in function or perhaps custom function?

thanks

here few implementations:

http://dpatrickcaldwell.blogspot.com/2009/05/converting-decimal-to-hexadecimal-with.html

http://snippets.dzone.com/posts/show/707

http://geekswithblogs.net/bbiales/archive/2009/05/04/131732.aspx