The Number

1820

One Thousand Eight Hundred and Twenty

In Base 25 Pentavigesimal Is

2mk25

The numbers with a 25 subscript use Base 25 Pentavigesimal 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
2mh25
One Thousand Eight Hundred and Seventeen in Base 25 Pentavigesimal
1818
2mi25
One Thousand Eight Hundred and Eightteen in Base 25 Pentavigesimal
1819
2mj25
One Thousand Eight Hundred and Nineteen in Base 25 Pentavigesimal
1821
2ml25
One Thousand Eight Hundred and Twenty-One in Base 25 Pentavigesimal
1822
2mm25
One Thousand Eight Hundred and Twenty-Two in Base 25 Pentavigesimal
1823
2mn25
One Thousand Eight Hundred and Twenty-Three in Base 25 Pentavigesimal

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.

0.008efi508efi525

The reciprocal of 1820 in Base 25 Pentavigesimal.

Palindrome?

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

The number 2mk25 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 25 Pentavigesimal

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
225
Two in Base 25 Pentavigesimal
5
525
Five in Base 25 Pentavigesimal
7
725
Seven in Base 25 Pentavigesimal
13
d25
Thirteen in Base 25 Pentavigesimal

Prime Factorization

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

2252 · 5251 · 7251 · d251 = 2mk25

Base Conversions

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