The Number
1998
One Thousand Nine Hundred and Ninety-Eight
In Base 7 Septenary Is
55537
The numbers with a 7 subscript use Base 7 Septenary 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.
0.00011261200011261200017
The reciprocal of 1998 in Base 7 Septenary.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 55537 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 7 Septenary
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
271
·
373
·
5271
= 55537
Base Conversions
The number one thousand nine hundred and ninety-eight in 35 different bases