The Number

2391

Two Thousand Three Hundred and Ninety-One

Nearby Numbers

Positive, nonzero integers within three units

2388
Two Thousand Three Hundred and Eighty-Eight
2389
Two Thousand Three Hundred and Eighty-Nine
2390
Two Thousand Three Hundred and Ninety
2392
Two Thousand Three Hundred and Ninety-Two
2393
Two Thousand Three Hundred and Ninety-Three
2394
Two Thousand Three Hundred and Ninety-Four

Scientific Notation

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

2.391e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0004182350480970305

The reciprocal of 2391.

Palindrome?

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

The number 2391 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 three hundred and ninety-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Two thousand three hundred and ninety-one is a composite number with 4 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 three hundred and ninety-one has the following 2 prime factors:

3
Three
797
Seven Hundred and Ninety-Seven

Prime Factorization

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

31 · 7971 = 2391

Base Conversions

The number two thousand three hundred and ninety-one in 35 different bases