Is there a nomenclature for linear alkanes with n carbons?
This does not answer you question, just mentions an alternative name that does have that count arabic numeral in the name, but is not eliminating the greek/latin prefixes. One could use IR-7.4 INORGANIC CHAINS AND RINGS nomenclature that would be impractical, e.g. the mentioned n-pentacontane would become dohectahydridopentacontacarby[50]catena or maybe even 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29,30,30,31,31,32,32,33,33,34,34,35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,43,43,44,44,45,45,46,46,47,47,48,48,49,49,50,50,50-dohectahydridopentacontacarby[50]catena (not to confuse with catenanes).