The Number

81998

Eighty-One Thousand Nine Hundred and Ninety-Eight

In Base 19 Nonadecimal Is

bi2d19

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

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

Nearby Numbers

Positive, nonzero integers within three units

81995
bi2a19
Eighty-One Thousand Nine Hundred and Ninety-Five in Base 19 Nonadecimal
81996
bi2b19
Eighty-One Thousand Nine Hundred and Ninety-Six in Base 19 Nonadecimal
81997
bi2c19
Eighty-One Thousand Nine Hundred and Ninety-Seven in Base 19 Nonadecimal
81999
bi2e19
Eighty-One Thousand Nine Hundred and Ninety-Nine in Base 19 Nonadecimal
82000
bi2f19
Eighty-Two Thousand in Base 19 Nonadecimal
82001
bi2g19
Eighty-Two Thousand and One in Base 19 Nonadecimal

Scientific Notation

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

8.1998e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001b3e2cf76676hd19

The reciprocal of 81998 in Base 19 Nonadecimal.

Palindrome?

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

The number bi2d19 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 nine hundred and ninety-eight is a composite number with 8 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 nine hundred and ninety-eight is a composite number with 8 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 nine hundred and ninety-eight has the following 3 prime factors:

2
219
Two in Base 19 Nonadecimal
7
719
Seven in Base 19 Nonadecimal
5857
g4519
Five Thousand Eight Hundred and Fifty-Seven in Base 19 Nonadecimal

Prime Factorization

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

2191 · 7191 · g45191 = bi2d19

Base Conversions

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