The U.S. government spent nearly $10 billion planning and developing a nuclear waste facility at Yucca Mountain (Nevada), though the project was cancelled in 2011. The intent had been for the facility to store up to 77,000metric tons of nuclear waste safely for at least 1 million years. Suppose it had been successful and stored the maximum amount of waste in the form of plutonium-239 with a half-life of 24,000 years. How much plutonium would have remained after 1 million years?

About___metric tons of plutonium would have remained after 1 million years.

(Type an integer or decimal rounded to nine decimal places as needed.)