The Number

78991

Seventy-Eight Thousand Nine Hundred and Ninety-One

Nearby Numbers

Positive, nonzero integers within three units

78988
Seventy-Eight Thousand Nine Hundred and Eighty-Eight
78989
Seventy-Eight Thousand Nine Hundred and Eighty-Nine
78990
Seventy-Eight Thousand Nine Hundred and Ninety
78992
Seventy-Eight Thousand Nine Hundred and Ninety-Two
78993
Seventy-Eight Thousand Nine Hundred and Ninety-Three
78994
Seventy-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.

7.8991e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00001265967008899748

The reciprocal of 78991.

Palindrome?

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

The number 78991 is not a palindrome.

Not A Prime Number

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

Seventy-eight thousand nine hundred and ninety-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Seventy-eight thousand nine hundred and ninety-one is a composite number with 8 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 seventy-eight thousand nine hundred and ninety-one has the following 3 prime factors:

11
Eleven
43
Forty-Three
167
One Hundred and Sixty-Seven

Prime Factorization

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

111 · 431 · 1671 = 78991

Base Conversions

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