400 million have how many zeros

The million and above - powers of ten

Million, billion, trillion - do you know how many zeros these numbers have?


The million consists of a one followed by six zeros, so "1,000,000". A million is a thousand times a thousand, i.e. a thousand squared or a thousand to the power of two. The power of ten notation is 106:

1.000.000 = 1.000 * 1.000 = 1.0002 = 106

As an abbreviation of million, "million" is or "Mill." common.

As with a thousand, the numerals of the two following powers of ten become 107 and 108 formed as compound numerals. So 107 Ten million and 108 are a hundred million.


The numerical word billion stands for a number with a one and nine zeros, ie "1,000,000,000".

A billion stands for a thousand million or a thousand times a thousand times a thousand, i.e. a thousand to the third power: = 1.000 * 1.000.000 = 1.000 * 1.000 * 1.000 = 1.0003 = 109

As an abbreviation for billion is "billion" common.

It is important to know that in the English-speaking world, especially in the USA, the term trillion is common for billions. One trillion, on the other hand, is the number 10 in German12.


In the German-speaking world, the number word Billion denotes a number with a one and twelve zeros, ie "1,000,000,000,000".

A trillion stands for a thousand billion or a million times a million, i.e. one million squared: = 1.000 * = 1.000.000 * 1.000.000 = 1012

In English, especially in the US, however, one trillion stands for the number 109, the number that is called a billion in German. Caution should therefore be exercised when translating between German and English. In addition, in British English both interpretations, i.e. 109 or 1012, can occur.