Nearby Numbers

Positive, nonzero integers within three units

27998

Twenty-Seven Thousand Nine Hundred and Ninety-Eight

27999

Twenty-Seven Thousand Nine Hundred and Ninety-Nine

28000

Twenty-Eight Thousand

28002

Twenty-Eight Thousand and Two

28003

Twenty-Eight Thousand and Three

28004

Twenty-Eight Thousand and Four

Scientific Notation

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

2.8001e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00003571301024963394

The reciprocal of 28001.

Palindrome?

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

The number 28001 is not a palindrome.

A Prime Number

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

Twenty-eight thousand and one is the 3056th prime number.   See primes in Base 10 Decimal

Not A Composite

Composites have more than just these two factors.

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

Prime Factors

28001

Twenty-Eight Thousand and One

Prime Factorization

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

280011 = 28001

Base Conversions

The number twenty-eight thousand and one in 35 different bases