en.wikipedia.org/wiki/1,000,000,000

Visualisation of powers of ten from one to 1 ... smallest prime number with 10
digits.

mathforum.org/sanders/geometry/GP10BillionEtc.html

If you sat down to count from one to one billion, you would be counting for 95
years. ... "Since most of the numbers between one and one trillion are even larger
...

www.quora.com/How-many-zeroes-are-there-in-one-billion

How many zeroes are there in one billion? In English one billion can refer to
either of two ... In English one billion can refer to either of two distinct numbers: 1.

www.reference.com/math/many-zeros-one-billion-3c3dfef9acb6436d

In scientific notation, one billion is written as 1x10 to the ninth... ... If a person
wanted to count to one billion and could spit out numbers at the rate of three per ...

stuff.mit.edu/afs/sipb/contrib/pi/

One billion (10^9) digits of pi (actually 1,000,000,001 digits if you count the initial
"3") are in the file pi-billion.txt. The MD5 checksum is in pi-billion.md5. JA0HXV ...

en.oxforddictionaries.com/explore/how-many-is-a-billion

In British English, a billion used to be equivalent to a million million (i.e. ... the
same linguistic pattern (ending with -illion) but do not refer to precise numbers.

math.about.com/od/glossaryofterms/a/zeros.htm

Aug 6, 2016 ... Numbers of Zeros in a Million, Billion, Trillion and More. How many ... For
example, you write one million as 1,000,000 rather than 1000000.

ihtd.org/festivalguide/resources/how-much-is-a-trillion-dollars/

Let's Measure a Trillion in Numbers. We'll start simple: how big is a trillion on
paper? 1,000 = one thousand 1,000,000 = one million 1,000,000,000 = one
billion

www.mathnstuff.com/math/spoken/here/2class/10/size.htm

By illustrating how one may rename a number in many ways. ... 2 billion is
2,000,000,000: is 2 thousand, thousand, thousands = 2 x 10<sup>3</sup> x 10<sup>3</sup> x 10<sup>3</sup>: = 2 x
10<sup>9</sup> ...

www.plainenglish.co.uk/campaigning/past-campaigns/budget/how-much-is-a-billion.html

Increasingly in this country we are using the USA meaning of a billion for these
big numbers, and a trillion for the old UK meaning of one followed by twelve ...