The Number

25981

Twenty-Five Thousand Nine Hundred and Eighty-One

Nearby Numbers

Positive, nonzero integers within three units

25978
Twenty-Five Thousand Nine Hundred and Seventy-Eight
25979
Twenty-Five Thousand Nine Hundred and Seventy-Nine
25980
Twenty-Five Thousand Nine Hundred and Eighty
25982
Twenty-Five Thousand Nine Hundred and Eighty-Two
25983
Twenty-Five Thousand Nine Hundred and Eighty-Three
25984
Twenty-Five Thousand Nine Hundred and Eighty-Four

Scientific Notation

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

2.5981e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00003848966552480659

The reciprocal of 25981.

Palindrome?

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

The number 25981 is not a palindrome.

A Prime Number

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

Twenty-five thousand nine hundred and eighty-one is the 2858th prime number.   See primes in Base 10 Decimal

Not A Composite

Composites have more than just these two factors.

Twenty-Five Thousand Nine Hundred and Eighty-One is not a composite number because it has exactly two factors: One and Twenty-Five Thousand Nine Hundred 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 twenty-five thousand nine hundred and eighty-one has the following 1 prime factor:

25981
Twenty-Five Thousand Nine Hundred and Eighty-One

Prime Factorization

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

259811 = 25981

Base Conversions

The number twenty-five thousand nine hundred and eighty-one in 35 different bases