The Number
121990
One Hundred and Twenty-One Thousand Nine Hundred and Ninety
In Base 12 Duodecimal Is
5a71a12
The numbers with a 12 subscript use Base 12 Duodecimal notation.
For more familiar numbers: See One Hundred and Twenty-One 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.
1.21990e5
Reciprocal
A number multiplied with its reciprocal is one.
0.0000205888b9539a24b12
The reciprocal of 121990 in Base 12 Duodecimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 5a71a12 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
One hundred and twenty-one thousand nine hundred and ninety is a composite number with 16 total factors (including 1 and itself). See primes in Base 12 Duodecimal
A Composite
Composites have more than just these two factors.
One hundred and twenty-one thousand nine hundred and ninety is a composite number with 16 total factors (including 1 and itself).
Prime Factors
The number one hundred and twenty-one 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
2121
·
5121
·
b121
·
785121
= 5a71a12
Base Conversions
The number one hundred and twenty-one thousand nine hundred and ninety in 35 different bases