Base | Representation |
---|---|
bin | 100000000000110001… |
… | …0001100110011101011 |
3 | 20120102222020222100121 |
4 | 1000001202030303223 |
5 | 2111242234004212 |
6 | 51325304344111 |
7 | 4652366502622 |
oct | 1000142146353 |
9 | 216388228317 |
10 | 68745219307 |
11 | 2717797a836 |
12 | 113a6775037 |
13 | 66374b2a7b |
14 | 34821066b9 |
15 | 1bc53a3d07 |
hex | 100188cceb |
68745219307 has 2 divisors, whose sum is σ = 68745219308. Its totient is φ = 68745219306.
The previous prime is 68745219281. The next prime is 68745219313. The reversal of 68745219307 is 70391254786.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 68745219307 - 215 = 68745186539 is a prime.
It is not a weakly prime, because it can be changed into another prime (68745219007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34372609653 + 34372609654.
It is an arithmetic number, because the mean of its divisors is an integer number (34372609654).
It is a 1-persistent number, because it is pandigital, but 2⋅68745219307 = 137490438614 is not.
Almost surely, 268745219307 is an apocalyptic number.
68745219307 is a deficient number, since it is larger than the sum of its proper divisors (1).
68745219307 is an equidigital number, since it uses as much as digits as its factorization.
68745219307 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2540160, while the sum is 52.
The spelling of 68745219307 in words is "sixty-eight billion, seven hundred forty-five million, two hundred nineteen thousand, three hundred seven".
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