The Number

81820

Eighty-One Thousand Eight Hundred and Twenty

In Base 19 Nonadecimal Is

bhc619

The numbers with a 19 subscript use Base 19 Nonadecimal 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
bhc319
Eighty-One Thousand Eight Hundred and Seventeen in Base 19 Nonadecimal
81818
bhc419
Eighty-One Thousand Eight Hundred and Eightteen in Base 19 Nonadecimal
81819
bhc519
Eighty-One Thousand Eight Hundred and Nineteen in Base 19 Nonadecimal
81821
bhc719
Eighty-One Thousand Eight Hundred and Twenty-One in Base 19 Nonadecimal
81822
bhc819
Eighty-One Thousand Eight Hundred and Twenty-Two in Base 19 Nonadecimal
81823
bhc919
Eighty-One Thousand Eight Hundred and Twenty-Three in Base 19 Nonadecimal

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.

0.0001b4ig5216cia9519

The reciprocal of 81820 in Base 19 Nonadecimal.

Palindrome?

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

The number bhc619 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 19 Nonadecimal

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
219
Two in Base 19 Nonadecimal
5
519
Five in Base 19 Nonadecimal
4091
b6619
Four Thousand and Ninety-One in Base 19 Nonadecimal

Prime Factorization

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

2192 · 5191 · b66191 = bhc619

Base Conversions

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