The Number

21047

Twenty-One Thousand and Forty-Seven

In Base 2 Binary Is

1010010001101112

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

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

Nearby Numbers

Positive, nonzero integers within three units

21044
1010010001101002
Twenty-One Thousand and Forty-Four in Base 2 Binary
21045
1010010001101012
Twenty-One Thousand and Forty-Five in Base 2 Binary
21046
1010010001101102
Twenty-One Thousand and Forty-Six in Base 2 Binary
21048
1010010001110002
Twenty-One Thousand and Forty-Eight in Base 2 Binary
21049
1010010001110012
Twenty-One Thousand and Forty-Nine in Base 2 Binary
21050
1010010001110102
Twenty-One Thousand and Fifty in Base 2 Binary

Scientific Notation

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

2.1047e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000000000000011000111010010000110001000101110100010010101111100112

The reciprocal of 21047 in Base 2 Binary.

Palindrome?

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

The number 1010010001101112 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 forty-seven is a composite number with 4 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 forty-seven is a composite number with 4 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 forty-seven has the following 2 prime factors:

13
11012
Thirteen in Base 2 Binary
1619
110010100112
One Thousand Six Hundred and Nineteen in Base 2 Binary

Prime Factorization

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

110121 · 1100101001121 = 1010010001101112

Base Conversions

The number twenty-one thousand and forty-seven in 35 different bases