The Number
21640
Twenty-One Thousand Six Hundred and Forty
In Base 9 Nonary Is
326149
The numbers with a 9 subscript use Base 9 Nonary notation.
For more familiar numbers: See Twenty-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.
2.1640e4
Reciprocal
A number multiplied with its reciprocal is one.
0.0000265018734283415239
The reciprocal of 21640 in Base 9 Nonary.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 326149 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Twenty-one thousand six hundred and forty is a composite number with 16 total factors (including 1 and itself). See primes in Base 9 Nonary
A Composite
Composites have more than just these two factors.
Twenty-one thousand six hundred and forty is a composite number with 16 total factors (including 1 and itself).
Prime Factors
The number twenty-one thousand six hundred and forty 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
293
·
591
·
66191
= 326149
Base Conversions
The number twenty-one thousand six hundred and forty in 35 different bases