By convention if it was 13.600 they would present it as 13.600 not 13.6. If I remember correctly Everest was first surveyed as 29000 feet tall and they changed

By convention if it was 13.600 they would present it as 13.600 not 13.6. If I remember correctly Everest was first surveyed as 29000 feet tall and they changed it arbitrarily to 29002 to avoid the apparent imprecision!