If you count 5 numbers every second that is 400,000,000 seconds, or almost 13 years.
it take 1000000000000000000000000000000000000000000000 seconds to count to 100 ; D
That depends on how fast you can count.
4543 days
4.56 seconds
As a human, it will take more than a lifetime.
It would take nothing
599,999 days.
Less than a second.
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 billion hours
It typically takes about 2 seconds to count to "2 Mississippi."
If you count at 5 numbers per second it will take over 6000 years!
It depends with your speed but it can take you 10^18 light years to count from 1 to 10 sextillion.