The Number

2081

Two Thousand and Eighty-One

Nearby Numbers

Positive, nonzero integers within three units

2078
Two Thousand and Seventy-Eight
2079
Two Thousand and Seventy-Nine
2080
Two Thousand and Eighty
2082
Two Thousand and Eighty-Two
2083
Two Thousand and Eighty-Three
2084
Two Thousand and Eighty-Four

Scientific Notation

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

2.081e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0004805382027871216

The reciprocal of 2081.

Palindrome?

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

The number 2081 is not a palindrome.

A Prime Number

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

Two thousand and eighty-one is the 313th prime number.   See primes in Base 10 Decimal

Not A Composite

Composites have more than just these two factors.

Two Thousand and Eighty-One is not a composite number because it has exactly two factors: One and Two Thousand and Eighty-One

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 eighty-one has the following 1 prime factor:

2081
Two Thousand and Eighty-One

Prime Factorization

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

20811 = 2081

Base Conversions

The number two thousand and eighty-one in 35 different bases