The Number
28005
Twenty-Eight Thousand and Five
In Base 21 Unovigesimal Is
30ac21
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See Twenty-Eight 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.
2.8005e4
Reciprocal
A number multiplied with its reciprocal is one.
0.0006jhb24i2i1j5c21
The reciprocal of 28005 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 30ac21 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Twenty-eight thousand 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.
Twenty-eight thousand and five is a composite number with 8 total factors (including 1 and itself).
Prime Factors
The number twenty-eight 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
3211
·
5211
·
44j211
= 30ac21
Base Conversions
The number twenty-eight thousand and five in 35 different bases