The Number
640990
Six Hundred and Forty Thousand Nine Hundred and Ninety
In Base 22 Duovigesimal Is
2g47k22
The numbers with a 22 subscript use Base 22 Duovigesimal notation.
For more familiar numbers: See Six Hundred and Forty Thousand Nine Hundred and Ninety 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.
6.40990e5
Reciprocal
A number multiplied with its reciprocal is one.
0.000080j92f89kfjl22
The reciprocal of 640990 in Base 22 Duovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 2g47k22 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Six hundred and forty thousand nine hundred and ninety is a composite number with 16 total factors (including 1 and itself). See primes in Base 22 Duovigesimal
A Composite
Composites have more than just these two factors.
Six hundred and forty thousand nine hundred and ninety is a composite number with 16 total factors (including 1 and itself).
Prime Factors
The number six hundred and forty thousand nine hundred and ninety 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
2221
·
5221
·
7221
·
ik5221
= 2g47k22
Base Conversions
The number six hundred and forty thousand nine hundred and ninety in 35 different bases