The Number

21004

Twenty-One Thousand and Four

In Base 2 Binary Is

1010010000011002

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

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

Nearby Numbers

Positive, nonzero integers within three units

21001
1010010000010012
Twenty-One Thousand and One in Base 2 Binary
21002
1010010000010102
Twenty-One Thousand and Two in Base 2 Binary
21003
1010010000010112
Twenty-One Thousand and Three in Base 2 Binary
21005
1010010000011012
Twenty-One Thousand and Five in Base 2 Binary
21006
1010010000011102
Twenty-One Thousand and Six in Base 2 Binary
21007
1010010000011112
Twenty-One Thousand and 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.

2.1004e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000000000000011000111101100001101001101100100001011111100011100012

The reciprocal of 21004 in Base 2 Binary.

Palindrome?

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

The number 1010010000011002 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 and four is a composite number with 12 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 and four is a composite number with 12 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 and four has the following 3 prime factors:

2
102
Two in Base 2 Binary
59
1110112
Fifty-Nine in Base 2 Binary
89
10110012
Eighty-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

1022 · 11101121 · 101100121 = 1010010000011002

Base Conversions

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