R change integer to three integers

Question

I have this number

20101213 which is a representation of this data 2010 Dec 13th I want to extract the year, month and day numbers from that nu

Answer 1

year <- as.numeric(substr(as.character(value),start = 1,stop = 4))
month <- as.numeric(substr(as.character(value),start = 5,stop = 6))
day <- as.numeric(substr(as.character(value),start = 7,stop = 8))