A googol is 1.0*10^100. there are <span>25000000000 RBC in the average adult. The number of adults equals 1.0*10^100 / </span><span>25000000000 =</span>400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 (=10^100/(25*10^9)=4*10^89)
