The Number

21801

Twenty-One Thousand Eight Hundred and One

In Base 25 Pentavigesimal Is

19m125

The numbers with a 25 subscript use Base 25 Pentavigesimal 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
19ln25
Twenty-One Thousand Seven Hundred and Ninety-Eight in Base 25 Pentavigesimal
21799
19lo25
Twenty-One Thousand Seven Hundred and Ninety-Nine in Base 25 Pentavigesimal
21800
19m025
Twenty-One Thousand Eight Hundred in Base 25 Pentavigesimal
21802
19m225
Twenty-One Thousand Eight Hundred and Two in Base 25 Pentavigesimal
21803
19m325
Twenty-One Thousand Eight Hundred and Three in Base 25 Pentavigesimal
21804
19m425
Twenty-One Thousand Eight Hundred and Four in Base 25 Pentavigesimal

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.

0.000hmnenbef547j25

The reciprocal of 21801 in Base 25 Pentavigesimal.

Palindrome?

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

The number 19m125 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 25 Pentavigesimal

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
325
Three in Base 25 Pentavigesimal
13
d25
Thirteen in Base 25 Pentavigesimal
43
1i25
Forty-Three in Base 25 Pentavigesimal

Prime Factorization

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

3251 · d252 · 1i251 = 19m125

Base Conversions

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