The Number
6645
Six Thousand Six Hundred and Forty-Five
In Base 21 Unovigesimal Is
f1921
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See Six Thousand Six Hundred and Forty-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.
6.645e3
Reciprocal
A number multiplied with its reciprocal is one.
0.00185ci3e1165gh21
The reciprocal of 6645 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number f1921 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Six thousand six hundred and forty-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.
Six thousand six hundred and forty-five is a composite number with 8 total factors (including 1 and itself).
Prime Factors
The number six thousand six hundred and forty-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
·
102211
= f1921
Base Conversions
The number six thousand six hundred and forty-five in 35 different bases