The Number

28991

Twenty-Eight Thousand Nine Hundred and Ninety-One

Nearby Numbers

Positive, nonzero integers within three units

28988
Twenty-Eight Thousand Nine Hundred and Eighty-Eight
28989
Twenty-Eight Thousand Nine Hundred and Eighty-Nine
28990
Twenty-Eight Thousand Nine Hundred and Ninety
28992
Twenty-Eight Thousand Nine Hundred and Ninety-Two
28993
Twenty-Eight Thousand Nine Hundred and Ninety-Three
28994
Twenty-Eight Thousand Nine Hundred and Ninety-Four

Scientific Notation

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

2.8991e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000034493463488668896

The reciprocal of 28991.

Palindrome?

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

The number 28991 is not a palindrome.

Not A Prime Number

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

Twenty-eight thousand nine 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.

Twenty-eight thousand nine 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 twenty-eight thousand nine hundred and ninety-one has the following 2 prime factors:

53
Fifty-Three
547
Five Hundred and Forty-Seven

Prime Factorization

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

531 · 5471 = 28991

Base Conversions

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