Base | Representation |
---|---|
bin | 111011101110011010… |
… | …0011000010001110001 |
3 | 110021001120111121011001 |
4 | 1313130310120101301 |
5 | 4100133221120113 |
6 | 134530554322001 |
7 | 12160241362102 |
oct | 1673464302161 |
9 | 407046447131 |
10 | 128258770033 |
11 | 4a4378062a9 |
12 | 20a35729301 |
13 | c130220944 |
14 | 62ca1303a9 |
15 | 350a0687dd |
hex | 1ddcd18471 |
128258770033 has 2 divisors, whose sum is σ = 128258770034. Its totient is φ = 128258770032.
The previous prime is 128258769973. The next prime is 128258770051. The reversal of 128258770033 is 330077852821.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 103216340529 + 25042429504 = 321273^2 + 158248^2 .
It is an emirp because it is prime and its reverse (330077852821) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 128258770033 - 29 = 128258769521 is a prime.
It is not a weakly prime, because it can be changed into another prime (128258770933) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64129385016 + 64129385017.
It is an arithmetic number, because the mean of its divisors is an integer number (64129385017).
Almost surely, 2128258770033 is an apocalyptic number.
It is an amenable number.
128258770033 is a deficient number, since it is larger than the sum of its proper divisors (1).
128258770033 is an equidigital number, since it uses as much as digits as its factorization.
128258770033 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 564480, while the sum is 46.
The spelling of 128258770033 in words is "one hundred twenty-eight billion, two hundred fifty-eight million, seven hundred seventy thousand, thirty-three".
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