A Museum of Numbers article explores mathematical curiosities, focusing on 1729 and the computing limit 2,147,483,647 (2³¹ − 1). The latter became famous when PSY's 'Gangnam Style' approached YouTube's original 32-bit counter capacity in 2014, prompting an upgrade. The number is a Mersenne prime discovered by Euler in 1772 and remains fundamental to how computers store integers.