The Number

21801

Twenty-One Thousand Eight Hundred and One

In Base 16 Hexadecimal Is

552916

The numbers with a 16 subscript use Base 16 Hexadecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21798
552616
Twenty-One Thousand Seven Hundred and Ninety-Eight in Base 16 Hexadecimal
21799
552716
Twenty-One Thousand Seven Hundred and Ninety-Nine in Base 16 Hexadecimal
21800
552816
Twenty-One Thousand Eight Hundred in Base 16 Hexadecimal
21802
552a16
Twenty-One Thousand Eight Hundred and Two in Base 16 Hexadecimal
21803
552b16
Twenty-One Thousand Eight Hundred and Three in Base 16 Hexadecimal
21804
552c16
Twenty-One Thousand Eight Hundred and Four in Base 16 Hexadecimal

Scientific Notation

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

2.1801e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0003018fcfb6ea07a16

The reciprocal of 21801 in Base 16 Hexadecimal.

Palindrome?

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

The number 552916 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 one is a composite number with 12 total factors (including 1 and itself).   See primes in Base 16 Hexadecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and one 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 eight hundred and one has the following 3 prime factors:

3
316
Three in Base 16 Hexadecimal
13
d16
Thirteen in Base 16 Hexadecimal
43
2b16
Forty-Three in Base 16 Hexadecimal

Prime Factorization

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

3161 · d162 · 2b161 = 552916

Base Conversions

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