Base | Representation |
---|---|
bin | 1111010010011… |
… | …01101000010001 |
3 | 22221022111000201 |
4 | 13221031220101 |
5 | 230312303431 |
6 | 20420415201 |
7 | 3115025626 |
oct | 751155021 |
9 | 287274021 |
10 | 128244241 |
11 | 66432884 |
12 | 36b47501 |
13 | 20752588 |
14 | 1306434d |
15 | b3d3461 |
hex | 7a4da11 |
128244241 has 8 divisors (see below), whose sum is σ = 132570368. Its totient is φ = 123930000.
The previous prime is 128244199. The next prime is 128244287. The reversal of 128244241 is 142442821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 128244241 - 211 = 128242193 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (128244841) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22591 + ... + 27691.
It is an arithmetic number, because the mean of its divisors is an integer number (16571296).
Almost surely, 2128244241 is an apocalyptic number.
It is an amenable number.
128244241 is a deficient number, since it is larger than the sum of its proper divisors (4326127).
128244241 is an equidigital number, since it uses as much as digits as its factorization.
128244241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5943.
The product of its digits is 4096, while the sum is 28.
The square root of 128244241 is about 11324.4973839902. The cubic root of 128244241 is about 504.2887625184.
The spelling of 128244241 in words is "one hundred twenty-eight million, two hundred forty-four thousand, two hundred forty-one".
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