An angle ϕ is given as 423π radians.
(i) Determine the number of complete revolutions contained in ϕ.
(ii) Find the radian measure of the remaining part of the angle that is less than one full revolution, writing your answer as an exact multiple of π.
(iii) Convert the remaining angle obtained in part (ii) to degrees, minutes and seconds, rounding the seconds to the nearest whole number.