I have 9 digits. My ten millions digit is 0 and is 8 less than my hundred millions digit. My hundred millions digit is 1 less than my thousands digit, 8 more than my millions digit, twice my ten thousands digit, and 4 times my hundred thousands digit. My digits in the ones period are zeros. What number am I?

800,249,000

To find the number using the given information, you need to systematically analyze the clues and determine the value of each digit position.

Let's go step by step:

1. The ten millions digit is 0 and is 8 less than the hundred millions digit. Since the ten millions digit is 0, the hundred millions digit must be 8.

2. The hundred millions digit is 1 less than the thousands digit. Therefore, the thousands digit must be 9 (since 8 - 1 = 9).

3. The hundred millions digit is also 8 more than the millions digit. Therefore, the millions digit is 0 (since 8 - 8 = 0).

4. The hundred millions digit is twice the ten thousands digit. The ten thousands digit can now be found by dividing the hundred millions digit (8) by 2, resulting in 4.

5. Finally, the hundred millions digit is 4 times the hundred thousands digit. The hundred thousands digit can be found by dividing the hundred millions digit (8) by 4, resulting in 2.

So far, the number looks like this: 8 0 0 0 0 2 4 9 0

6. The digits in the ones period are zeros. Therefore, the ones digit and the tenths digit must also be zero.

Putting it all together, the number is: 8 0 0 0 0 2 4 9 0

So, the number is 800,002,490.