The Number

1820

One Thousand Eight Hundred and Twenty

In Base 31 Untrigesimal Is

1rm31

The numbers with a 31 subscript use Base 31 Untrigesimal 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
1rj31
One Thousand Eight Hundred and Seventeen in Base 31 Untrigesimal
1818
1rk31
One Thousand Eight Hundred and Eightteen in Base 31 Untrigesimal
1819
1rl31
One Thousand Eight Hundred and Nineteen in Base 31 Untrigesimal
1821
1rn31
One Thousand Eight Hundred and Twenty-One in Base 31 Untrigesimal
1822
1ro31
One Thousand Eight Hundred and Twenty-Two in Base 31 Untrigesimal
1823
1rp31
One Thousand Eight Hundred and Twenty-Three in Base 31 Untrigesimal

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.

0.00gbd9bt4dp6s31

The reciprocal of 1820 in Base 31 Untrigesimal.

Palindrome?

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

The number 1rm31 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 31 Untrigesimal

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
231
Two in Base 31 Untrigesimal
5
531
Five in Base 31 Untrigesimal
7
731
Seven in Base 31 Untrigesimal
13
d31
Thirteen in Base 31 Untrigesimal

Prime Factorization

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

2312 · 5311 · 7311 · d311 = 1rm31

Base Conversions

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