Properties and Facts about 2018

The new year has come upon us, and with it a new number to work with. Because of this, I want to compile a list of properties and facts about the number 2018 for use in competitions and problem writing. This can include relationships with other numbers, ways to formulate it as an expression, and expressions involving it; however, any fact about 2018 that could be used in a competition setting can belong here.

I'll start this list off with some basic facts:

2018 is even.
The prime factorization of 2018 is $2 \times 1009.$
2018 has four digits.
The sum of the digits of 2018 is 11.
etc. etc. etc.

Feel free to contribute anything about the number 2018 in the comments!

Markdown	Appears as
`italics` or `_italics_`	italics
`bold` or `__bold__`	bold
- bulleted - list	bulleted list
1. numbered 2. list	numbered list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1 paragraph 2	paragraph 1 paragraph 2
`[example link](https://brilliant.org)`	example link
`> This is a quote`	This is a quote
# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"	# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$

Properties and Facts about 2018

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