1 billion is 1,000,000,000 400 million is 400,000,000 added together is 1,400,000,000
7,000,000,000 is 7 billion
1,300,000,000
1,000,000,000
1,600,000
7.046 billion 7,046,000,000 Written as ' Seven billion and forty six million '.
580,000,000
29,000,000,000
3,810,000,000
1,560,000,000
1,100,000,000
69,000,000,000
3,000,000,700