The Number

198

One Hundred and Ninety-Eight

In Base 21 Unovigesimal Is

9921

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

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

Nearby Numbers

Positive, nonzero integers within three units

195
9621
One Hundred and Ninety-Five in Base 21 Unovigesimal
196
9721
One Hundred and Ninety-Six in Base 21 Unovigesimal
197
9821
One Hundred and Ninety-Seven in Base 21 Unovigesimal
199
9a21
One Hundred and Ninety-Nine in Base 21 Unovigesimal
200
9b21
Two Hundred in Base 21 Unovigesimal
201
9c21
Two Hundred 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.

1.98e2

Reciprocal

A number multiplied with its reciprocal is one.

0.024g4g4g4g4g4i21

The reciprocal of 198 in Base 21 Unovigesimal.

Palindrome?

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

The number 9921 is a palindrome.

Not A Prime Number

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

One hundred and ninety-eight is a composite number with 12 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

One hundred and ninety-eight is a composite number with 12 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 one hundred and ninety-eight has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
11
b21
Eleven 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 · 3212 · b211 = 9921

Base Conversions

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