[74:30] عليها تسعة عشر

Over it is 19

This verse is base of mathematical miracle of 19.God in this verse points to nineteen.This verse is very important.Quran isn't normal book.Harmony of verses play important roles in Quran.Harmony of verses is like order of poetry in Arabic and Farsi and other languages . Many poets say poetry by specific Harmony. they say poetry that all sentences of it ends with specific letter.For example harmony of verse 74:30 is "ر" because 74:30 ends with order Ra(ر).Verse 74:30 ends with harmony Ra ( ر ) and count of Ra in it is One.Now consider all verses in total Quran that end with Ra and count of Ra in them is One.It is interesting that in such state we have 114(19*6) verses in total Quran.

For extra information refer to: 74:30