The Number
81993
Eighty-One Thousand Nine Hundred and Ninety-Three
In Base 18 Octodecimal Is
e11318
The numbers with a 18 subscript use Base 18 Octodecimal notation.
For more familiar numbers: See Eighty-One Thousand Nine Hundred and Ninety-Three 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.
8.1993e4
Reciprocal
A number multiplied with its reciprocal is one.
0.000150ed44ac299718
The reciprocal of 81993 in Base 18 Octodecimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number e11318 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 nine hundred and ninety-three is a composite number with 8 total factors (including 1 and itself). See primes in Base 18 Octodecimal
A Composite
Composites have more than just these two factors.
Eighty-one thousand nine hundred and ninety-three is a composite number with 8 total factors (including 1 and itself).
Prime Factors
The number eighty-one thousand nine hundred and ninety-three 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
3181
·
87181
·
a1181
= e11318
Base Conversions
The number eighty-one thousand nine hundred and ninety-three in 35 different bases