The Number

1820

One Thousand Eight Hundred and Twenty

In Base 20 Vigesimal Is

4b020

The numbers with a 20 subscript use Base 20 Vigesimal 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
4ah20
One Thousand Eight Hundred and Seventeen in Base 20 Vigesimal
1818
4ai20
One Thousand Eight Hundred and Eightteen in Base 20 Vigesimal
1819
4aj20
One Thousand Eight Hundred and Nineteen in Base 20 Vigesimal
1821
4b120
One Thousand Eight Hundred and Twenty-One in Base 20 Vigesimal
1822
4b220
One Thousand Eight Hundred and Twenty-Two in Base 20 Vigesimal
1823
4b320
One Thousand Eight Hundred and Twenty-Three in Base 20 Vigesimal

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.

0.0047i4ge167990620

The reciprocal of 1820 in Base 20 Vigesimal.

Palindrome?

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

The number 4b020 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 20 Vigesimal

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
220
Two in Base 20 Vigesimal
5
520
Five in Base 20 Vigesimal
7
720
Seven in Base 20 Vigesimal
13
d20
Thirteen in Base 20 Vigesimal

Prime Factorization

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

2202 · 5201 · 7201 · d201 = 4b020

Base Conversions

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