
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
According to statistical data, the number of viewers who watched the Spring Festival Gala live broadcast through television, the internet, and other terminals reached 1.173 billion. Express 1.173 billion in scientific notation as ______.

Present the answer in LaTex format: \boxed{Your answer}
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