The Number

21401

Twenty-One Thousand Four Hundred and One

Nearby Numbers

Positive, nonzero integers within three units

21398
Twenty-One Thousand Three Hundred and Ninety-Eight
21399
Twenty-One Thousand Three Hundred and Ninety-Nine
21400
Twenty-One Thousand Four Hundred
21402
Twenty-One Thousand Four Hundred and Two
21403
Twenty-One Thousand Four Hundred and Three
21404
Twenty-One Thousand Four Hundred and Four

Scientific Notation

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

2.1401e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000046726788467828604

The reciprocal of 21401.

Palindrome?

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

The number 21401 is not a palindrome.

A Prime Number

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

Twenty-one thousand four hundred and one is the 2403rd prime number.   See primes in Base 10 Decimal

Not A Composite

Composites have more than just these two factors.

Twenty-One Thousand Four Hundred and One is not a composite number because it has exactly two factors: One and Twenty-One Thousand Four Hundred and One

Prime Factors

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

The number twenty-one thousand four hundred and one has the following 1 prime factor:

21401
Twenty-One Thousand Four Hundred and One

Prime Factorization

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

214011 = 21401

Base Conversions

The number twenty-one thousand four hundred and one in 35 different bases