The Number

21841

Twenty-One Thousand Eight Hundred and Forty-One

In Base 2 Binary Is

1010101010100012

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

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

Nearby Numbers

Positive, nonzero integers within three units

21838
1010101010011102
Twenty-One Thousand Eight Hundred and Thirty-Eight in Base 2 Binary
21839
1010101010011112
Twenty-One Thousand Eight Hundred and Thirty-Nine in Base 2 Binary
21840
1010101010100002
Twenty-One Thousand Eight Hundred and Forty in Base 2 Binary
21842
1010101010100102
Twenty-One Thousand Eight Hundred and Forty-Two in Base 2 Binary
21843
1010101010100112
Twenty-One Thousand Eight Hundred and Forty-Three in Base 2 Binary
21844
1010101010101002
Twenty-One Thousand Eight Hundred and Forty-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.

2.1841e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000000000000011000000000010011100000001111110110001100111000000012

The reciprocal of 21841 in Base 2 Binary.

Palindrome?

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

The number 1010101010100012 is not a palindrome.

A Prime Number

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

Twenty-one thousand eight hundred and forty-one is the 2450th prime number.   See primes in Base 2 Binary

Not A Composite

Composites have more than just these two factors.

Twenty-One Thousand Eight Hundred and Forty-One is not a composite number because it has exactly two factors: One and Twenty-One Thousand Eight Hundred and Forty-One

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 forty-one has the following 1 prime factor:

21841
1010101010100012
Twenty-One Thousand Eight Hundred and Forty-One in Base 2 Binary

Prime Factorization

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

10101010101000121 = 1010101010100012

Base Conversions

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