The Number
1998
One Thousand Nine Hundred and Ninety-Eight
In Base 21 Unovigesimal Is
4b321
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See One Thousand Nine Hundred and Ninety-Eight in Base 10 Decimal
Nearby Numbers
Positive, nonzero integers within three units
Scientific Notation
Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.
1.998e3
Reciprocal
A number multiplied with its reciprocal is one.
0.004d71kf0hi97dc21
The reciprocal of 1998 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 4b321 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
One 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.
One thousand nine hundred and ninety-eight is a composite number with 16 total factors (including 1 and itself).
Prime Factors
The number one thousand nine hundred and ninety-eight has the following 3 prime factors:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
2211
·
3213
·
1g211
= 4b321
Base Conversions
The number one thousand nine hundred and ninety-eight in 35 different bases