write the following in scientific notation: This is what I wrote, am I right?

2.033Km= 2.033 * 10 3 Km
54890W= 5.4890 * 10 4 W
0.073461Kg= 7.3461 * 10 -2Kg
0.00000641172m= 6.41172 * 10-6m
0.3695245454= 3.695245454 * 10-1

All correct except:

"2.033Km= 2.033 * 10³ Km "

Check the question, if it is 2,033 km then
2,033Km= 2.033 * 10 3 Km
If it is 2.033 km, the answer will not change, as it would be 2.033*100, but the exponent part will not be used because 100=1.
So
2.033 km = 2.033 km