The Number

71981

Seventy-One Thousand Nine Hundred and Eighty-One

Nearby Numbers

Positive, nonzero integers within three units

71978
Seventy-One Thousand Nine Hundred and Seventy-Eight
71979
Seventy-One Thousand Nine Hundred and Seventy-Nine
71980
Seventy-One Thousand Nine Hundred and Eighty
71982
Seventy-One Thousand Nine Hundred and Eighty-Two
71983
Seventy-One Thousand Nine Hundred and Eighty-Three
71984
Seventy-One 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.

7.1981e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000013892554979786333

The reciprocal of 71981.

Palindrome?

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

The number 71981 is not a palindrome.

Not A Prime Number

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

Seventy-one thousand nine hundred and eighty-one is a composite number with 12 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Seventy-one thousand nine hundred and eighty-one is a composite number with 12 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-one thousand nine hundred and eighty-one has the following 3 prime factors:

7
Seven
13
Thirteen
113
One Hundred and Thirteen

Prime Factorization

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

72 · 131 · 1131 = 71981

Base Conversions

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