Math Problem (Level 3) : Triangle of integers written counterclockwise (III4)

As shown in a figure, an integer is arranged sequentially from 1. 

The case where 2007 steps are put in order is considered.

    


(1) Find the largest number.

(2) In which steps from the top and which number from the left is the largest number ? 




Answer
(1) 2015028
(2) 1338th from the top, 670th from the left

Reference