23x10^-4
.23x10^4
4.28x10^3
23x10^4
23x10^-5
23x10^5
428x10^-3
2.3x10^4
428x10^2
23x10^6
2300000
230000
.0023
42800
.00023
.428
2300
4280
23000000
23000