Base | Representation |
---|---|
bin | 111001011110100100… |
… | …0111001011000011001 |
3 | 102210121012200001002001 |
4 | 1302331020321120121 |
5 | 4010242132412142 |
6 | 132412022441001 |
7 | 11626524216652 |
oct | 1627510713031 |
9 | 383535601061 |
10 | 123432310297 |
11 | 483903596aa |
12 | 1bb09293161 |
13 | b8413138ca |
14 | 5d8d124529 |
15 | 33264915b7 |
hex | 1cbd239619 |
123432310297 has 2 divisors, whose sum is σ = 123432310298. Its totient is φ = 123432310296.
The previous prime is 123432310147. The next prime is 123432310349. The reversal of 123432310297 is 792013234321.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 71787020761 + 51645289536 = 267931^2 + 227256^2 .
It is an emirp because it is prime and its reverse (792013234321) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 123432310297 - 227 = 123298092569 is a prime.
It is a super-5 number, since 5×1234323102975 (a number of 57 digits) contains 55555 as substring.
It is not a weakly prime, because it can be changed into another prime (123432310697) 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, 61716155148 + 61716155149.
It is an arithmetic number, because the mean of its divisors is an integer number (61716155149).
Almost surely, 2123432310297 is an apocalyptic number.
It is an amenable number.
123432310297 is a deficient number, since it is larger than the sum of its proper divisors (1).
123432310297 is an equidigital number, since it uses as much as digits as its factorization.
123432310297 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 54432, while the sum is 37.
The spelling of 123432310297 in words is "one hundred twenty-three billion, four hundred thirty-two million, three hundred ten thousand, two hundred ninety-seven".
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