Spend One Billion in a Day

You Qian got a System, but it was a little unusual. System: “Congratulations, Host. You have obtained the Tycoon Money-Multiplier System.” You Qian: “What does a money-multiplier System do?” System: “Just as the name suggests, the amount of money you receive each day is double what you got the day before.” You Qian started counting on his fingers. Two yuan on day one, four on day two, and on day three... By day thirty, holy crap! More than a billion! You Qian: “Do I have to spend all that billion-plus in a single day?” System: “Yes. You must spend it all in one day, or else... You know what happens.” You Qian: “Oh my gosh! I finally spent it all.” System: “Now that you’ve spent that billion, there’s still...”