The Number

21984

Twenty-One Thousand Nine Hundred and Eighty-Four

In Base 2 Binary Is

1010101111000002

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

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

Nearby Numbers

Positive, nonzero integers within three units

21981
1010101110111012
Twenty-One Thousand Nine Hundred and Eighty-One in Base 2 Binary
21982
1010101110111102
Twenty-One Thousand Nine Hundred and Eighty-Two in Base 2 Binary
21983
1010101110111112
Twenty-One Thousand Nine Hundred and Eighty-Three in Base 2 Binary
21985
1010101111000012
Twenty-One Thousand Nine Hundred and Eighty-Five in Base 2 Binary
21986
1010101111000102
Twenty-One Thousand Nine Hundred and Eighty-Six in Base 2 Binary
21987
1010101111000112
Twenty-One Thousand Nine Hundred and Eighty-Seven in Base 2 Binary

Scientific Notation

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

2.1984e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000000000000010111110110010011111011111001101010100100101101000112

The reciprocal of 21984 in Base 2 Binary.

Palindrome?

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

The number 1010101111000002 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand nine hundred and eighty-four is a composite number with 24 total factors (including 1 and itself).   See primes in Base 2 Binary

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and eighty-four is a composite number with 24 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 twenty-one thousand nine hundred and eighty-four has the following 3 prime factors:

2
102
Two in Base 2 Binary
3
112
Three in Base 2 Binary
229
111001012
Two Hundred and Twenty-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

1025 · 1121 · 1110010121 = 1010101111000002

Base Conversions

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