Which of the following pairs is not correctly written in scientific notation?

1,207,000 = 1.207 × 10(To the 6th power)
6,500 = 6.5 × 10(to the 2nd power)
901 = 9.01 × 10(to the 2nd power)
40,200 = 4.02 × 10(to the 4th power)