A company is considering a project which requires $4.5 million in capital investment. The project can bring in an annual revenue of $500k/year next 17 years. The annual operation cost (e.g. labor and supplies) is $45k/year. Starting from year 12, the equipment will need major maintenance and this cost starts at $5 k/year and increase by $5k each year until the end of the project life time (17 years). The equipment has a salvage value of $450k at the end of the project. Calculate the project's net future value at year 17 to find out whether it's worth investing. The interest rate is 5%. Please only fill in the number of your calculated result in the blank, e.g., if the result is $100k, fill in 100"; also round to the nearest integer