9 digits
all of them are in there
We only use 10 digits (0 through 9), so I would say, there is one of them.
One million is 1 followed by 6 zeroes - a total of 7 digits.
30000000
9 digits
250 million = 250,000,000. There are 9 digits in this number.
9
none because you are counting
all of them are in there
We only use 10 digits (0 through 9), so I would say, there is one of them.
7 digits.
Eight Digits: 30,000,000
There are 8 digits in 65,600,000
well the first 9 digit number is 100 million 100,000,000 the last 9 digit number is 999 million 999,999,999 just minus the two numbers and you get... 899,999,999 so there are around 900 million 9 digit numbers.
9,007,000,012
One million is 1 followed by 6 zeroes - a total of 7 digits.