The Number

81398

Eighty-One Thousand Three Hundred and Ninety-Eight

In Base 20 Vigesimal Is

a39i20

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

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

Nearby Numbers

Positive, nonzero integers within three units

81395
a39f20
Eighty-One Thousand Three Hundred and Ninety-Five in Base 20 Vigesimal
81396
a39g20
Eighty-One Thousand Three Hundred and Ninety-Six in Base 20 Vigesimal
81397
a39h20
Eighty-One Thousand Three Hundred and Ninety-Seven in Base 20 Vigesimal
81399
a39j20
Eighty-One Thousand Three Hundred and Ninety-Nine in Base 20 Vigesimal
81400
a3a020
Eighty-One Thousand Four Hundred in Base 20 Vigesimal
81401
a3a120
Eighty-One Thousand Four 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.

8.1398e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001j6540geiie8e20

The reciprocal of 81398 in Base 20 Vigesimal.

Palindrome?

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

The number a39i20 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 three 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 three 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 three hundred and ninety-eight has the following 2 prime factors:

2
220
Two in Base 20 Vigesimal
40699
51ej20
Forty Thousand Six Hundred and Ninety-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 · 51ej201 = a39i20

Base Conversions

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