The Number
81005
Eighty-One Thousand and Five
In Base 13 Tridecimal Is
2ab4213
The numbers with a 13 subscript use Base 13 Tridecimal notation.
For more familiar numbers: See Eighty-One Thousand and Five 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.
8.1005e4
Reciprocal
A number multiplied with its reciprocal is one.
0.0000477818838423a3613
The reciprocal of 81005 in Base 13 Tridecimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 2ab4213 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 five is a composite number with 8 total factors (including 1 and itself). See primes in Base 13 Tridecimal
A Composite
Composites have more than just these two factors.
Eighty-one thousand and five is a composite number with 8 total factors (including 1 and itself).
Prime Factors
The number eighty-one thousand and five 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
5131
·
14131
·
584131
= 2ab4213
Base Conversions
The number eighty-one thousand and five in 35 different bases