Base | Representation |
---|---|
bin | 1111010001111… |
… | …00110011101011 |
3 | 22221011222111210 |
4 | 13220330303223 |
5 | 230303102324 |
6 | 20415124203 |
7 | 3114321015 |
oct | 750746353 |
9 | 287158453 |
10 | 128175339 |
11 | 66396036 |
12 | 36b13663 |
13 | 2072a0c6 |
14 | 130471b5 |
15 | b3bcd29 |
hex | 7a3cceb |
128175339 has 8 divisors (see below), whose sum is σ = 171924480. Its totient is φ = 84938216.
The previous prime is 128175287. The next prime is 128175347. The reversal of 128175339 is 933571821.
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 128175339 - 27 = 128175211 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 128175297 and 128175306.
It is not an unprimeable number, because it can be changed into a prime (128175139) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127419 + ... + 128420.
It is an arithmetic number, because the mean of its divisors is an integer number (21490560).
Almost surely, 2128175339 is an apocalyptic number.
128175339 is a deficient number, since it is larger than the sum of its proper divisors (43749141).
128175339 is a wasteful number, since it uses less digits than its factorization.
128175339 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 256009.
The product of its digits is 45360, while the sum is 39.
The square root of 128175339 is about 11321.4548093432. The cubic root of 128175339 is about 504.1984329809.
The spelling of 128175339 in words is "one hundred twenty-eight million, one hundred seventy-five thousand, three hundred thirty-nine".
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