The Number

981

Nine Hundred and Eighty-One

In Base 2 Binary Is

11110101012

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

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

Nearby Numbers

Positive, nonzero integers within three units

978
11110100102
Nine Hundred and Seventy-Eight in Base 2 Binary
979
11110100112
Nine Hundred and Seventy-Nine in Base 2 Binary
980
11110101002
Nine Hundred and Eighty in Base 2 Binary
982
11110101102
Nine Hundred and Eighty-Two in Base 2 Binary
983
11110101112
Nine Hundred and Eighty-Three in Base 2 Binary
984
11110110002
Nine 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.

9.81e2

Reciprocal

A number multiplied with its reciprocal is one.

0.000000000100001011001110001010000011000000000100001011001110012

The reciprocal of 981 in Base 2 Binary.

Palindrome?

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

The number 11110101012 is not a palindrome.

Not A Prime Number

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

Nine hundred and eighty-one is a composite number with 6 total factors (including 1 and itself).   See primes in Base 2 Binary

A Composite

Composites have more than just these two factors.

Nine hundred and eighty-one is a composite number with 6 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 nine hundred and eighty-one has the following 2 prime factors:

3
112
Three in Base 2 Binary
109
11011012
One Hundred and Nine in Base 2 Binary

Prime Factorization

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

1122 · 110110121 = 11110101012

Base Conversions

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