The Number

81820

Eighty-One Thousand Eight Hundred and Twenty

In Base 36 Hexatrigesimal Is

1r4s36

The numbers with a 36 subscript use Base 36 Hexatrigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81817
1r4p36
Eighty-One Thousand Eight Hundred and Seventeen in Base 36 Hexatrigesimal
81818
1r4q36
Eighty-One Thousand Eight Hundred and Eightteen in Base 36 Hexatrigesimal
81819
1r4r36
Eighty-One Thousand Eight Hundred and Nineteen in Base 36 Hexatrigesimal
81821
1r4t36
Eighty-One Thousand Eight Hundred and Twenty-One in Base 36 Hexatrigesimal
81822
1r4u36
Eighty-One Thousand Eight Hundred and Twenty-Two in Base 36 Hexatrigesimal
81823
1r4v36
Eighty-One Thousand Eight Hundred and Twenty-Three in Base 36 Hexatrigesimal

Scientific Notation

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

8.1820e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000kj0ixzphdap36

The reciprocal of 81820 in Base 36 Hexatrigesimal.

Palindrome?

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

The number 1r4s36 is not a palindrome.

Not A Prime Number

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

Eighty-one thousand eight hundred and twenty is a composite number with 12 total factors (including 1 and itself).   See primes in Base 36 Hexatrigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand eight hundred and twenty is a composite number with 12 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 eighty-one thousand eight hundred and twenty has the following 3 prime factors:

2
236
Two in Base 36 Hexatrigesimal
5
536
Five in Base 36 Hexatrigesimal
4091
35n36
Four Thousand and Ninety-One in Base 36 Hexatrigesimal

Prime Factorization

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

2362 · 5361 · 35n361 = 1r4s36

Base Conversions

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