The Number
128720
One Hundred and Twenty-Eight Thousand Seven Hundred and Twenty
In Base 9 Nonary Is
2155129
The numbers with a 9 subscript use Base 9 Nonary notation.
For more familiar numbers: See One Hundred and Twenty-Eight Thousand Seven Hundred and Twenty 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.
1.28720e5
Reciprocal
A number multiplied with its reciprocal is one.
0.00000411371164534277039
The reciprocal of 128720 in Base 9 Nonary.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 2155129 is 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-eight thousand seven hundred and twenty is a composite number with 20 total factors (including 1 and itself). See primes in Base 9 Nonary
A Composite
Composites have more than just these two factors.
One hundred and twenty-eight thousand seven hundred and twenty is a composite number with 20 total factors (including 1 and itself).
Prime Factors
The number one hundred and twenty-eight thousand seven hundred and twenty 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
294
·
591
·
217791
= 2155129
Base Conversions
The number one hundred and twenty-eight thousand seven hundred and twenty in 35 different bases