The Number

81998

Eighty-One Thousand Nine Hundred and Ninety-Eight

In Base 13 Tridecimal Is

2b42713

The numbers with a 13 subscript use Base 13 Tridecimal 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
2b42413
Eighty-One Thousand Nine Hundred and Ninety-Five in Base 13 Tridecimal
81996
2b42513
Eighty-One Thousand Nine Hundred and Ninety-Six in Base 13 Tridecimal
81997
2b42613
Eighty-One Thousand Nine Hundred and Ninety-Seven in Base 13 Tridecimal
81999
2b42813
Eighty-One Thousand Nine Hundred and Ninety-Nine in Base 13 Tridecimal
82000
2b42913
Eighty-Two Thousand in Base 13 Tridecimal
82001
2b42a13
Eighty-Two Thousand and One in Base 13 Tridecimal

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.

0.000046b324183b1782a13

The reciprocal of 81998 in Base 13 Tridecimal.

Palindrome?

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

The number 2b42713 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 13 Tridecimal

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
213
Two in Base 13 Tridecimal
7
713
Seven in Base 13 Tridecimal
5857
288713
Five Thousand Eight Hundred and Fifty-Seven in Base 13 Tridecimal

Prime Factorization

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

2131 · 7131 · 2887131 = 2b42713

Base Conversions

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