The Number
20640
Twenty Thousand Six Hundred and Forty
In Base 15 Quindecimal Is
61b015
The numbers with a 15 subscript use Base 15 Quindecimal notation.
For more familiar numbers: See Twenty 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.
2.0640e4
Reciprocal
A number multiplied with its reciprocal is one.
0.00026bd10cdb7c88115
The reciprocal of 20640 in Base 15 Quindecimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 61b015 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Twenty thousand six hundred and forty is a composite number with 48 total factors (including 1 and itself). See primes in Base 15 Quindecimal
A Composite
Composites have more than just these two factors.
Twenty thousand six hundred and forty is a composite number with 48 total factors (including 1 and itself).
Prime Factors
The number twenty 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
2155
·
3151
·
5151
·
2d151
= 61b015
Base Conversions
The number twenty thousand six hundred and forty in 35 different bases