The Number

21864

Twenty-One Thousand Eight Hundred and Sixty-Four

In Base 2 Binary Is

1010101011010002

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

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

Nearby Numbers

Positive, nonzero integers within three units

21861
1010101011001012
Twenty-One Thousand Eight Hundred and Sixty-One in Base 2 Binary
21862
1010101011001102
Twenty-One Thousand Eight Hundred and Sixty-Two in Base 2 Binary
21863
1010101011001112
Twenty-One Thousand Eight Hundred and Sixty-Three in Base 2 Binary
21865
1010101011010012
Twenty-One Thousand Eight Hundred and Sixty-Five in Base 2 Binary
21866
1010101011010102
Twenty-One Thousand Eight Hundred and Sixty-Six in Base 2 Binary
21867
1010101011010112
Twenty-One Thousand Eight Hundred and Sixty-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.

2.1864e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000000000000010111111110101100000100100101101111111011111000001112

The reciprocal of 21864 in Base 2 Binary.

Palindrome?

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

The number 1010101011010002 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 eight hundred and sixty-four is a composite number with 16 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 eight hundred and sixty-four is a composite number with 16 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 eight hundred and sixty-four has the following 3 prime factors:

2
102
Two in Base 2 Binary
3
112
Three in Base 2 Binary
911
11100011112
Nine Hundred and Eleven in Base 2 Binary

Prime Factorization

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

1023 · 1121 · 111000111121 = 1010101011010002

Base Conversions

The number twenty-one thousand eight hundred and sixty-four in 35 different bases