3*107
30, 048, 000, 000
30,645
984,639
1000000+200 000+30 000+4000+100+10
Thirty thousand is written as 30,000 or 30 000
30, 048, 000, 000
30,645
984,639
Standard form of 30 is 3.0 × 101
32,471.407
Do you mean “expanded form“ because that would be 400+30+2
The way you wrote it is the standard form.
1000000+200 000+30 000+4000+100+10
Thirty thousand is written as 30,000 or 30 000
2 thousand 4 hundred 30 (2,430) in standard form is 2.43 × 103
The correct word form is: thirty sextillion, seven hundred quintillion
3000