The Number

1801

One Thousand Eight Hundred and One

In Base 21 Unovigesimal Is

41g21

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

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

Nearby Numbers

Positive, nonzero integers within three units

1798
41d21
One Thousand Seven Hundred and Ninety-Eight in Base 21 Unovigesimal
1799
41e21
One Thousand Seven Hundred and Ninety-Nine in Base 21 Unovigesimal
1800
41f21
One Thousand Eight Hundred in Base 21 Unovigesimal
1802
41h21
One Thousand Eight Hundred and Two in Base 21 Unovigesimal
1803
41i21
One Thousand Eight Hundred and Three in Base 21 Unovigesimal
1804
41j21
One 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.

1.801e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0052ke838aad1ad21

The reciprocal of 1801 in Base 21 Unovigesimal.

Palindrome?

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

The number 41g21 is not a palindrome.

A Prime Number

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

One thousand eight hundred and one is the 279th prime number.   See primes in Base 21 Unovigesimal

Not A Composite

Composites have more than just these two factors.

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

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number one thousand eight hundred and one has the following 1 prime factor:

1801
41g21
One Thousand Eight Hundred and One in Base 21 Unovigesimal

Prime Factorization

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

41g211 = 41g21

Base Conversions

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