The Number

81898

Eighty-One Thousand Eight Hundred and Ninety-Eight

In Base 20 Vigesimal Is

a4ei20

The numbers with a 20 subscript use Base 20 Vigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

81895
a4ef20
Eighty-One Thousand Eight Hundred and Ninety-Five in Base 20 Vigesimal
81896
a4eg20
Eighty-One Thousand Eight Hundred and Ninety-Six in Base 20 Vigesimal
81897
a4eh20
Eighty-One Thousand Eight Hundred and Ninety-Seven in Base 20 Vigesimal
81899
a4ej20
Eighty-One Thousand Eight Hundred and Ninety-Nine in Base 20 Vigesimal
81900
a4f020
Eighty-One Thousand Nine Hundred in Base 20 Vigesimal
81901
a4f120
Eighty-One Thousand Nine Hundred and One in Base 20 Vigesimal

Scientific Notation

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

8.1898e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001j193ii7189hc20

The reciprocal of 81898 in Base 20 Vigesimal.

Palindrome?

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

The number a4ei20 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 ninety-eight is a composite number with 4 total factors (including 1 and itself).   See primes in Base 20 Vigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand eight hundred and ninety-eight is a composite number with 4 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 ninety-eight has the following 2 prime factors:

2
220
Two in Base 20 Vigesimal
40949
527920
Forty Thousand Nine Hundred and Forty-Nine in Base 20 Vigesimal

Prime Factorization

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

2201 · 5279201 = a4ei20

Base Conversions

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