The Number

18998

Eightteen Thousand Nine Hundred and Ninety-Eight

In Base 21 Unovigesimal Is

211e21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

18995
211b21
Eightteen Thousand Nine Hundred and Ninety-Five in Base 21 Unovigesimal
18996
211c21
Eightteen Thousand Nine Hundred and Ninety-Six in Base 21 Unovigesimal
18997
211d21
Eightteen Thousand Nine Hundred and Ninety-Seven in Base 21 Unovigesimal
18999
211f21
Eightteen Thousand Nine Hundred and Ninety-Nine in Base 21 Unovigesimal
19000
211g21
Nineteen Thousand in Base 21 Unovigesimal
19001
211h21
Nineteen Thousand and One in Base 21 Unovigesimal

Scientific Notation

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

1.8998e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000a4ka27ic2jj1c21

The reciprocal of 18998 in Base 21 Unovigesimal.

Palindrome?

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

The number 211e21 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Eightteen thousand nine hundred and ninety-eight is a composite number with 16 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eightteen thousand nine hundred and ninety-eight is a composite number with 16 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 eightteen thousand nine hundred and ninety-eight has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
7
721
Seven in Base 21 Unovigesimal
23
1221
Twenty-Three in Base 21 Unovigesimal
59
2h21
Fifty-Nine in Base 21 Unovigesimal

Prime Factorization

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

2211 · 7211 · 12211 · 2h211 = 211e21

Base Conversions

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