Base | Representation |
---|---|
bin | 111011101011100111… |
… | …0110001101101110100 |
3 | 110020211001002221102212 |
4 | 1313113032301231310 |
5 | 4044440221323201 |
6 | 134513405152552 |
7 | 12155022515621 |
oct | 1672716615564 |
9 | 406731087385 |
10 | 128165026676 |
11 | 4a3998a8555 |
12 | 20a0a25b758 |
13 | c11698abbb |
14 | 62bb8cb348 |
15 | 3501becabb |
hex | 1dd73b1b74 |
128165026676 has 6 divisors (see below), whose sum is σ = 224288796690. Its totient is φ = 64082513336.
The previous prime is 128165026673. The next prime is 128165026687. The reversal of 128165026676 is 676620561821.
128165026676 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 79445059600 + 48719967076 = 281860^2 + 220726^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128165026673) 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 as a sum of consecutive naturals, namely, 16020628331 + ... + 16020628338.
It is an arithmetic number, because the mean of its divisors is an integer number (37381466115).
Almost surely, 2128165026676 is an apocalyptic number.
It is an amenable number.
128165026676 is a deficient number, since it is larger than the sum of its proper divisors (96123770014).
128165026676 is a wasteful number, since it uses less digits than its factorization.
128165026676 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32041256673 (or 32041256671 counting only the distinct ones).
The product of its (nonzero) digits is 1451520, while the sum is 50.
The spelling of 128165026676 in words is "one hundred twenty-eight billion, one hundred sixty-five million, twenty-six thousand, six hundred seventy-six".
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