Base | Representation |
---|---|
bin | 111011111011001111… |
… | …0101010000100011111 |
3 | 110022011120120221102001 |
4 | 1313312132222010133 |
5 | 4102023424031414 |
6 | 135041413543131 |
7 | 12204016601020 |
oct | 1676636520437 |
9 | 408146527361 |
10 | 128689283359 |
11 | 4a63882233a |
12 | 20b35944aa7 |
13 | c19b486a60 |
14 | 632b398c47 |
15 | 3532c58074 |
hex | 1df67aa11f |
128689283359 has 16 divisors (see below), whose sum is σ = 165273196032. Its totient is φ = 97393130208.
The previous prime is 128689283357. The next prime is 128689283383. The reversal of 128689283359 is 953382986821.
It is a cyclic number.
It is not a de Polignac number, because 128689283359 - 21 = 128689283357 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 128689283359.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128689283353) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30740689 + ... + 30744874.
It is an arithmetic number, because the mean of its divisors is an integer number (10329574752).
Almost surely, 2128689283359 is an apocalyptic number.
128689283359 is a deficient number, since it is larger than the sum of its proper divisors (36583912673).
128689283359 is a wasteful number, since it uses less digits than its factorization.
128689283359 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61485606.
The product of its digits is 44789760, while the sum is 64.
The spelling of 128689283359 in words is "one hundred twenty-eight billion, six hundred eighty-nine million, two hundred eighty-three thousand, three hundred fifty-nine".
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