The Number
81640
Eighty-One Thousand Six Hundred and Forty
In Base 20 Vigesimal Is
a42020
The numbers with a 20 subscript use Base 20 Vigesimal notation.
For more familiar numbers: See Eighty-One Thousand Six Hundred and Forty 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.
8.1640e4
Reciprocal
A number multiplied with its reciprocal is one.
0.0001j3ibfb867fc420
The reciprocal of 81640 in Base 20 Vigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number a42020 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 six hundred and forty is a composite number with 32 total factors (including 1 and itself). See primes in Base 20 Vigesimal
A Composite
Composites have more than just these two factors.
Eighty-one thousand six hundred and forty is a composite number with 32 total factors (including 1 and itself).
Prime Factors
The number eighty-one thousand six hundred and forty has the following 4 prime factors:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
2203
·
5201
·
d201
·
7h201
= a42020
Base Conversions
The number eighty-one thousand six hundred and forty in 35 different bases