~> ruby -v
ruby 1.8.7 (2008-06-20 patchlevel 22) [i686-darwin9.5.1]
 ~> file `which ruby`
/www/bin/ruby: Mach-O 64-bit executable x86_64
 ~> irb

>> hex = "65ce30a0bf3cc5b026ca66e884d53c69"
=> "65ce30a0bf3cc5b026ca66e884d53c69"
>> hex[0..13].to_i(16)
=> 28655680898415813
>> hex[0..14].to_i(16)
=> 458490894374653019
>> hex[0..15].to_i(16)
=> 3208431024
# WTF?!!!

 ~> ruby -v
ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin10.0.0]
 ~> file `which ruby`
/www/bin/ruby: Mach-O 64-bit executable x86_64
 ~> irb
irb(main):001:0> hex = "65ce30a0bf3cc5b026ca66e884d53c69"
=> "65ce30a0bf3cc5b026ca66e884d53c69"
irb(main):002:0> hex[0..13].to_i(16)
=> 28655680898415813
irb(main):003:0> hex[0..14].to_i(16)
=> 458490894374653019
irb(main):004:0> hex[0..15].to_i(16)
=> 7335854309994448304