The Number
81009
Eighty-One Thousand and Nine
In Base 18 Octodecimal Is
dg0918
The numbers with a 18 subscript use Base 18 Octodecimal notation.
For more familiar numbers: See Eighty-One Thousand and Nine 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.
8.1009e4
Reciprocal
A number multiplied with its reciprocal is one.
0.000155f7e11a893a818
The reciprocal of 81009 in Base 18 Octodecimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number dg0918 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 and nine is a composite number with 6 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 and nine is a composite number with 6 total factors (including 1 and itself).
Prime Factors
The number eighty-one thousand and nine has the following 2 prime factors:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
3182
·
19e1181
= dg0918
Base Conversions
The number eighty-one thousand and nine in 35 different bases