The Number

2015

Two Thousand and Fifteen

Nearby Numbers

Positive, nonzero integers within three units

2012
Two Thousand and Twelve
2013
Two Thousand and Thirteen
2014
Two Thousand and Fourteen
2016
Two Thousand and Sixteen
2017
Two Thousand and Seventeen
2018
Two Thousand and Eightteen

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

2.015e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0004962779156327543

The reciprocal of 2015.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 2015 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Two thousand and fifteen is a composite number with 8 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Two thousand and fifteen is a composite number with 8 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number two thousand and fifteen has the following 3 prime factors:

5
Five
13
Thirteen
31
Thirty-One

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

51 · 131 · 311 = 2015

Base Conversions

The number two thousand and fifteen in 35 different bases