is this number written in scientific notation? 3.2 x 10^6

0.9x10^-2
6.7x1000^9
7.3x10^-5
1.12x10^1
457x10^7

Yes, the number "3.2 x 10^6" is written in scientific notation.

Yes, the number "0.9 x 10^-2" is written in scientific notation.
No, the number "6.7 x 1000^9" is not written in scientific notation. It should be simplified as "6.7 x 10^27" to be in scientific notation.
Yes, the number "7.3 x 10^-5" is written in scientific notation.
Yes, the number "1.12 x 10^1" is written in scientific notation.
No, the number "457 x 10^7" is not written in scientific notation. It should be simplified as "4.57 x 10^9" to be in scientific notation.