The Number

155981

One Hundred and Fifty-Five Thousand Nine Hundred and Eighty-One

Nearby Numbers

Positive, nonzero integers within three units

155978
One Hundred and Fifty-Five Thousand Nine Hundred and Seventy-Eight
155979
One Hundred and Fifty-Five Thousand Nine Hundred and Seventy-Nine
155980
One Hundred and Fifty-Five Thousand Nine Hundred and Eighty
155982
One Hundred and Fifty-Five Thousand Nine Hundred and Eighty-Two
155983
One Hundred and Fifty-Five Thousand Nine Hundred and Eighty-Three
155984
One Hundred and Fifty-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.

1.55981e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000006411037241715337

The reciprocal of 155981.

Palindrome?

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

The number 155981 is not a palindrome.

Not A Prime Number

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

One hundred and fifty-five thousand nine hundred and eighty-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.

One hundred and fifty-five thousand nine hundred and eighty-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 one hundred and fifty-five thousand nine hundred and eighty-one has the following 2 prime factors:

7
Seven
22283
Twenty-Two Thousand Two Hundred and Eighty-Three

Prime Factorization

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

71 · 222831 = 155981

Base Conversions

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