Macro To Clear Cells With Numbers But Not Cells With Formulas

Macro to clear cells with numbers but no cells with formulas with in this macro:

Dim i As Long
i = Range("E3")
If i > 0 Then
' Copy range
Range(Cells(6, 10 + i), Cells(500, 17)).Copy
Range(Cells(6, 10), Cells(500, 17)).Select
' Paste special
ActiveSheet.PasteSpecial Format:=2, Link:=1, _
DisplayAsIcon:=False, IconFileName:=False
' Clear i columns on the right
Range(Cells(6, 18 - i), Cells(500, 17)).ClearContents
End If
End Sub

The range is where the cells with numbers need to be cleared but not the ones with formulas.