The Number

1801

One Thousand Eight Hundred and One

In Base 18 Octodecimal Is

5a118

The numbers with a 18 subscript use Base 18 Octodecimal 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
59g18
One Thousand Seven Hundred and Ninety-Eight in Base 18 Octodecimal
1799
59h18
One Thousand Seven Hundred and Ninety-Nine in Base 18 Octodecimal
1800
5a018
One Thousand Eight Hundred in Base 18 Octodecimal
1802
5a218
One Thousand Eight Hundred and Two in Base 18 Octodecimal
1803
5a318
One Thousand Eight Hundred and Three in Base 18 Octodecimal
1804
5a418
One Thousand Eight Hundred and Four in Base 18 Octodecimal

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.

0.00345336hd90ea618

The reciprocal of 1801 in Base 18 Octodecimal.

Palindrome?

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

The number 5a118 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 18 Octodecimal

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
5a118
One Thousand Eight Hundred and One in Base 18 Octodecimal

Prime Factorization

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

5a1181 = 5a118

Base Conversions

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