The Number
12805
Twelve Thousand Eight Hundred and Five
In Base 21 Unovigesimal Is
180g21
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See Twelve Thousand Eight Hundred 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.
1.2805e4
Reciprocal
A number multiplied with its reciprocal is one.
0.000f3ji21cci82421
The reciprocal of 12805 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 180g21 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Twelve thousand eight hundred and five is a composite number with 8 total factors (including 1 and itself). See primes in Base 21 Unovigesimal
A Composite
Composites have more than just these two factors.
Twelve thousand eight hundred and five is a composite number with 8 total factors (including 1 and itself).
Prime Factors
The number twelve thousand eight hundred 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
5211
·
d211
·
98211
= 180g21
Base Conversions
The number twelve thousand eight hundred and five in 35 different bases