The Number

181

One Hundred and Eighty-One

In Base 2 Binary Is

101101012

The numbers with a 2 subscript use Base 2 Binary notation.

For more familiar numbers: See One Hundred and Eighty-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

178
101100102
One Hundred and Seventy-Eight in Base 2 Binary
179
101100112
One Hundred and Seventy-Nine in Base 2 Binary
180
101101002
One Hundred and Eighty in Base 2 Binary
182
101101102
One Hundred and Eighty-Two in Base 2 Binary
183
101101112
One Hundred and Eighty-Three in Base 2 Binary
184
101110002
One Hundred and Eighty-Four in Base 2 Binary

Scientific Notation

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

1.81e2

Reciprocal

A number multiplied with its reciprocal is one.

0.000000010110101000010011110011010001010100110111001010012

The reciprocal of 181 in Base 2 Binary.

Palindrome?

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

The number 101101012 is not a palindrome.

A Prime Number

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

One hundred and eighty-one is the 42nd prime number.   See primes in Base 2 Binary

Not A Composite

Composites have more than just these two factors.

One Hundred and Eighty-One is not a composite number because it has exactly two factors: One and One 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 one hundred and eighty-one has the following 1 prime factor:

181
101101012
One Hundred and Eighty-One in Base 2 Binary

Prime Factorization

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

1011010121 = 101101012

Base Conversions

The number one hundred and eighty-one in 35 different bases