Hecho matemático: 2782 is the maximum value of n so that there exist 4 denominations of stamps so that every postage from 1 to n can be paid for with at most 19 stamps.
Trivia: 2782 is an uninteresting number.
Fecha histórica: August 13th is the day in 1913 that First production in the UK of stainless steel by Harry Brearley.