Express each of the following numbers in standard form.
`31865000000`

Answer

To express the number `31865000000` in standard form, we follow these steps:

### Step-by-Step Solution:

1. **Identify the number**: We have the number `31865000000`.

2. **Locate the decimal point**: In standard form, we need to express the number in a way that there is only one non-zero digit to the left of the decimal point. The number can be thought of as `31865000000.0` for our calculations.

3. **Move the decimal point**: We need to move the decimal point to the left until only one non-zero digit remains to the left of the decimal. In this case, we move the decimal point 10 places to the left:
- From `31865000000.0` to `3.1865`.

4. **Count the number of places moved**: We moved the decimal point 10 places to the left. This means we will multiply by \(10^{10}\) to account for the shift.

5. **Write in standard form**: Now we can write the number in standard form:
\[ 3.1865 \times 10^{10} \]

### Final Answer:
The standard form of `31865000000` is:
\[ 3.1865 \times 10^{10} \]