67
1 + 2 + 5 + 10 + 67 + 134 + 335 + 670 = 1,224
The numbers are 670, 671 and 672.
The answer = 3500
23% of 670 = 23% * 670 = 0.23 * 670 = 154.1
80% of 670 = 80% * 670 = 0.8 * 670 = 536
670
0.0134
670
670 is ten times bigger than 67.
Half of 670 is 335.
670 is not Perfect.