Base | Representation |
---|---|
bin | 111111101110010110… |
… | …001101001110101111 |
3 | 20112121112112012100021 |
4 | 333232112031032233 |
5 | 2110112331330312 |
6 | 51233324543011 |
7 | 4641410344402 |
oct | 775626151657 |
9 | 215545465307 |
10 | 68423308207 |
11 | 270221a0201 |
12 | 113169b1a67 |
13 | 65b58b2a27 |
14 | 345146bd39 |
15 | 1ba6eb7c07 |
hex | fee58d3af |
68423308207 has 2 divisors, whose sum is σ = 68423308208. Its totient is φ = 68423308206.
The previous prime is 68423308183. The next prime is 68423308241. The reversal of 68423308207 is 70280332486.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-68423308207 is a prime.
It is a super-2 number, since 2×684233082072 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68423300207) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34211654103 + 34211654104.
It is an arithmetic number, because the mean of its divisors is an integer number (34211654104).
Almost surely, 268423308207 is an apocalyptic number.
68423308207 is a deficient number, since it is larger than the sum of its proper divisors (1).
68423308207 is an equidigital number, since it uses as much as digits as its factorization.
68423308207 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 387072, while the sum is 43.
The spelling of 68423308207 in words is "sixty-eight billion, four hundred twenty-three million, three hundred eight thousand, two hundred seven".
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