The Number

21421

Twenty-One Thousand Four Hundred and Twenty-One

In Base 2 Binary Is

1010011101011012

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

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

Nearby Numbers

Positive, nonzero integers within three units

21418
1010011101010102
Twenty-One Thousand Four Hundred and Eightteen in Base 2 Binary
21419
1010011101010112
Twenty-One Thousand Four Hundred and Nineteen in Base 2 Binary
21420
1010011101011002
Twenty-One Thousand Four Hundred and Twenty in Base 2 Binary
21422
1010011101011102
Twenty-One Thousand Four Hundred and Twenty-Two in Base 2 Binary
21423
1010011101011112
Twenty-One Thousand Four Hundred and Twenty-Three in Base 2 Binary
21424
1010011101100002
Twenty-One Thousand Four Hundred and Twenty-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.

2.1421e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00000000000000110000111100110110101001101100001101000000111011011112

The reciprocal of 21421 in Base 2 Binary.

Palindrome?

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

The number 1010011101011012 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 four hundred and twenty-one 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 four hundred and twenty-one 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 four hundred and twenty-one has the following 2 prime factors:

31
111112
Thirty-One in Base 2 Binary
691
10101100112
Six Hundred and Ninety-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

1111121 · 101011001121 = 1010011101011012

Base Conversions

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