The Number

81800

Eighty-One Thousand Eight Hundred

In Base 19 Nonadecimal Is

bhb519

The numbers with a 19 subscript use Base 19 Nonadecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81797
bhb219
Eighty-One Thousand Seven Hundred and Ninety-Seven in Base 19 Nonadecimal
81798
bhb319
Eighty-One Thousand Seven Hundred and Ninety-Eight in Base 19 Nonadecimal
81799
bhb419
Eighty-One Thousand Seven Hundred and Ninety-Nine in Base 19 Nonadecimal
81801
bhb619
Eighty-One Thousand Eight Hundred and One in Base 19 Nonadecimal
81802
bhb719
Eighty-One Thousand Eight Hundred and Two in Base 19 Nonadecimal
81803
bhb819
Eighty-One Thousand Eight Hundred and 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.

8.1800e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001b52a074b7657619

The reciprocal of 81800 in Base 19 Nonadecimal.

Palindrome?

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

The number bhb519 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 is a composite number with 24 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 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 eighty-one thousand eight hundred has the following 3 prime factors:

2
219
Two in Base 19 Nonadecimal
5
519
Five in Base 19 Nonadecimal
409
12a19
Four Hundred and Nine in Base 19 Nonadecimal

Prime Factorization

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

2193 · 5192 · 12a191 = bhb519

Base Conversions

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