Suppose you were the sole winner of the Power Ball Lottery and the corresponding $150 million jackpot. You may either receive either a lump sum payment now, or a series of thirty $5 million payments per year, beginning immediately for 30 periods. If the current 30-year interest rate is 4%, compounded annually, what should the lump sum payment be today to make you indifferent between receiving a lump sum payout or receiving the $5 million per year 30-year annuity set of payments? What do you call this type of annuity?