How do you Write out 24 billion?

Answer 1

It depends which scale you use:

• For those that use the long scale (based on powers of a million) as used in Europe (and by me, so I write it):

1 billion = (10⁶)² = 10¹²

→ 24 billion = 24 × 10¹² = 24,000,000,000,000

• For those that use the short scale (based on powers of a thousand plus 1) as used in US:

1 billion = (10³)²⁺1 = (10³)³ = 10⁹

→ 24 billion = 24 × 10⁹ = 24,000,000,000

Answer 2

It is 24,000,000,000