If you had Avogadro’s number of dollars and spent one billion dollars every second, how many years would it ta

Question

If you had Avogadro’s number of dollars and spent one billion dollars every second, how many years would it take to spend it all?

GPT-5 mini · Answer

Avogadro’s number ≈ 6.022×10^23. Spending $10^9 per second gives

time = (6.022×10^23) / (10^9) = 6.022×10^14 seconds.

Convert to years (1 year ≈ 3.15576×10^7 s):

6.022×10^14 s / 3.15576×10^7 s/yr ≈ 1.91×10^7 years ≈ 19.1 million years.

If you had Avogadro’s number of dollars and spent one billion dollars every second, how many years would it take to spend it all?