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In the American system, each denomination over one million is 1,000 times larger than the last one (one billion is equal to 1,000 millions). But have you ever wondered how big these numbers are? This article will explain it to us....Read MoreRead Less

In math, we often represent larger numbers in exponential form or either call them as million, billion, and trillion. The difference between the words ‘million’ and ‘billion’ is only one letter, yet that one letter denotes that the number is a thousand times greater than the other. Now, let’s see how big each number is.

One million is equal to **thousand thousands**. In one million, we have 1 followed by 6 zeros, that is, 1, 000, 000 and it can be written as **\(10^6 \)** (ten to the sixth power). It takes around 11 and a half days to complete one million seconds.

*1 million* = 1, 000, 000

One billion is equal to a **thousand millions**. 1 billion has 1 followed by 9 zeros, that is, 1, 000, 000, 000 and it is represented as **\(10^9 \)**** **(ten to the ninth power). One billion seconds is about 32 years.

*1 billion* = 1, 000, 000, 000

Now, let’s move on to 1 trillion.

One trillion equals a **thousand billions**, or **million millions**. 1 trillion consists of 1 followed by 12 zeros, that is, 1, 000, 000,000, 000 and can be written as **\(10^{12} \)**** **(ten to the twelfth power). It takes about 32,000 years to finish 1 trillion seconds.

*1 trillion* = 1, 000, 000, 000, 000

[Note: The values which are greater than a trillion are called **Quadrillion \((10^{15}) \)**and **Quintillion \((10^{18}) \)**.]

The value of each digit in a number can be determined using a place value chart. In order to determine the value of the various digits in a number, we need to place the given number into the place value chart so that the place value of each digit can be observed. The image shows us how a place value chart looks like.

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Although the numbers millions and billions are larger, a basic multiplication operation is all we need to convert them. So, to convert a million to a billion we just have to divide the given number by 1000 billion.

*Million to billion* = \(\frac{(given ~value ~in~million)}{1000} \) *billion*

[Note: Similarly, we can even convert a billion to a million by multiplying the billion value by 1000.]

We will now try converting millions to trillions. It may sound a bit challenging. However, we need to do the similar thing that we do for a million to billion conversion. Here, instead of dividing by 1000, we divide the given number with **1000000**.

*Million to trillion* = \(\frac{(given ~value ~in~million)}{1000000} \)* trillion*

[Note: By multiplying the million value by 1000000, we can convert a trillion to a million.]

So now, we will turn a billion to a trillion by dividing the given billion number by 1000.

*Billion to trillion* = \(\frac{(given ~value ~in~billion)}{1000} \)* trillion*

[Note: Also, by multiplying the trillion value by 1000, we can convert a trillion to a billion.]

**Example 1: **

**The annual income of Temperate Springs, a company that makes carpets, is $2 million. Can you find how many billions it equals to?**

**Solution:**

Given, the annual income of the company is $2 million.

We know that one billion is equivalent to a thousand million.

Then, by using the million to billion formula we can write,

*Million to billion* = \(\frac{(given ~value ~in~million)}{1000} \) *billion*

= \(\frac{2}{1000} \) *billion *

= 0.002 *billion*

**Hence, the annual income of the Temperate Springs is $0.002 billion.**

**Example 2: **

**According to a study, astronomers stated that the Milky Way has 200 billion stars. Then, what would be the count of stars in trillions? **

**Solution:**

As mentioned, the Milky Way has 200 billion stars.

In order to convert it into trillions we can directly use the billion to trillion conversion formula.

That is,

*Billion to trillion* = \(\frac{(given ~value ~in~billion)}{1000} \)* trillion*

= \(\frac{200}{1000} \) *trillion*

= 0.2 *trillion *

**Therefore, the number of stars in the Milky Way is 0.2 trillion.**

**Example 3: **

**How many millions is 3 trillions?**

**Solution:**

We already know that one trillion is equivalent to 1 million millions.

By using the formula,

*Trillions to millions* = (*Given value in trillions* \(\times\) 1000000) *millions*

= 3 \(\times\) 1000000 *millions *

= 3000000 *millions*

**Thus, 3 trillions = 3, 000, 000 millions.**

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Frequently Asked Questions on Million, Billion, Trillion

One billion is equivalent to 1000 million or in words, we can say that one thousand million, that is, 1, 000, 000, 000. Therefore, one billion has 9 zeros.

One trillion is equivalent to 1000000 million or in words, we can say that one million million, that is, 1, 000, 000, 000, 000. Therefore, one trillion has 12 zeros.

The values quadrillion and quintillion are greater than a trillion.

We use millions, billions, and trillions in many instances where larger numbers are used like the population of a country, the total income of an organization, the number of hair follicles on a human head or the distance between the Earth to other planets, and so on.