The Number

1820

One Thousand Eight Hundred and Twenty

In Base 13 Tridecimal Is

aa013

The numbers with a 13 subscript use Base 13 Tridecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1817
a9a13
One Thousand Eight Hundred and Seventeen in Base 13 Tridecimal
1818
a9b13
One Thousand Eight Hundred and Eightteen in Base 13 Tridecimal
1819
a9c13
One Thousand Eight Hundred and Nineteen in Base 13 Tridecimal
1821
aa113
One Thousand Eight Hundred and Twenty-One in Base 13 Tridecimal
1822
aa213
One Thousand Eight Hundred and Twenty-Two in Base 13 Tridecimal
1823
aa313
One Thousand Eight Hundred and Twenty-Three in Base 13 Tridecimal

Scientific Notation

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

1.820e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0012901290129012a13

The reciprocal of 1820 in Base 13 Tridecimal.

Palindrome?

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

The number aa013 is not a palindrome.

Not A Prime Number

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

One thousand eight hundred and twenty is a composite number with 24 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

One thousand eight hundred and twenty is a composite number with 24 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 one thousand eight hundred and twenty has the following 4 prime factors:

2
213
Two in Base 13 Tridecimal
5
513
Five in Base 13 Tridecimal
7
713
Seven in Base 13 Tridecimal
13
1013
Thirteen in Base 13 Tridecimal

Prime Factorization

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

2132 · 5131 · 7131 · 10131 = aa013

Base Conversions

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