400 billion = 400 arab. 400 billion is 400,000,000,000 in digits, written 4,00,00,00,00,000 in the Indian system.
How to convert billion to arab
arab = billion × 1
- 1 billion = 1 arab (and 1 arab = 1 billion).
- Multiply the amount by the factor: 400 × 1 = 400.
- Answer: 400 billion = 400 arab.
Indian and international place values
| Indian | Digits (Indian) | International |
|---|---|---|
| 1 lakh | 1,00,000 | 100 thousand |
| 10 lakh | 10,00,000 | 1 million |
| 1 crore | 1,00,00,000 | 10 million |
| 10 crore | 10,00,00,000 | 100 million |
| 100 crore (1 arab) | 1,00,00,00,000 | 1 billion |
| 1 lakh crore | 1,00,00,00,00,000 | 1 trillion |
Billion to Arab table
| Billion (billion) | Arab (arab) |
|---|---|
| 395 billion | 395 arab |
| 396 billion | 396 arab |
| 397 billion | 397 arab |
| 398 billion | 398 arab |
| 399 billion | 399 arab |
| 400 billion | 400 arab |
| 401 billion | 401 arab |
| 402 billion | 402 arab |
| 403 billion | 403 arab |
| 404 billion | 404 arab |
| 405 billion | 405 arab |
| billion | arab |
|---|---|
| 1 billion | 1 arab |
| 2 billion | 2 arab |
| 5 billion | 5 arab |
| 10 billion | 10 arab |
| 50 billion | 50 arab |
| 100 billion | 100 arab |
Good to know
1 lakh = 100,000 (1,00,000) and 1 crore = 10 million (1,00,00,000).
1 million = 10 lakh, 1 billion = 100 crore, 1 trillion = 1 lakh crore.
The Indian system groups digits in twos after the first three (15,00,00,000); the international system groups in threes (150,000,000).