Which is the biggest country?

Here's a listing of the twenty largest countries in the world by area, in both square kilometers and square miles.

Russia: 17,075,200 km2 (6,591,027 mi2)
Canada: 9,984,670 km2 (3,854,082 mi2)
United States: 9,631,418 km2 (3,717,727 mi2)
China: 9,596,960 km2 (3,704,426 mi2)
Brazil: 8,511,965 km2 (3,285,618 mi2)
Australia: 7,686,850 km2 (2,967,124 mi2)
India: 3,287,590 km2 (1,269,009 mi2)
Argentina: 2,766,890 km2 (1,068,019 mi2)
Kazakhstan: 2,717,300 km2 (1,048,877 mi2)
Algeria: 2,381,740 km2 (919,352 mi2)
Congo, Democratic Republic of the: 2,345,410 km2 (905,328 mi2)
Mexico: 1,972,550 km2 (761,404 mi2)
Saudi Arabia: 1,960,582 km2 (756,785 mi2)
Indonesia: 1,919,440 km2 (740,904 mi2)
Sudan: 1,886,068 km2 (728,215 mi2)
Libya: 1,759,540 km2 (679,182 mi2)
Iran: 1,648,000 km2 (636,128 mi2)
Mongolia: 1,564,116 km2 (603,749 mi2)
Peru: 1,285,220 km2 (496,095 mi2)
Chad: 1,284,000 km2 (495,624 mi2)