The Number

18801

Eightteen Thousand Eight Hundred and One

In Base 21 Unovigesimal Is

20d621

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

18798
20d321
Eightteen Thousand Seven Hundred and Ninety-Eight in Base 21 Unovigesimal
18799
20d421
Eightteen Thousand Seven Hundred and Ninety-Nine in Base 21 Unovigesimal
18800
20d521
Eightteen Thousand Eight Hundred in Base 21 Unovigesimal
18802
20d721
Eightteen Thousand Eight Hundred and Two in Base 21 Unovigesimal
18803
20d821
Eightteen Thousand Eight Hundred and Three in Base 21 Unovigesimal
18804
20d921
Eightteen Thousand Eight Hundred and Four in Base 21 Unovigesimal

Scientific Notation

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

1.8801e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000a74ga4a34bd5621

The reciprocal of 18801 in Base 21 Unovigesimal.

Palindrome?

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

The number 20d621 is not a palindrome.

Not A Prime Number

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

Eightteen thousand eight hundred and one is a composite number with 6 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eightteen thousand eight hundred and one is a composite number with 6 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 eightteen thousand eight hundred and one has the following 2 prime factors:

3
321
Three in Base 21 Unovigesimal
2089
4fa21
Two Thousand and Eighty-Nine in Base 21 Unovigesimal

Prime Factorization

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

3212 · 4fa211 = 20d621

Base Conversions

The number eightteen thousand eight hundred and one in 35 different bases