Base | Representation |
---|---|
bin | 111111010111000000… |
… | …110100010111000011 |
3 | 20111121020212210211002 |
4 | 333113000310113003 |
5 | 2103312121402342 |
6 | 51130422042215 |
7 | 4625614655063 |
oct | 772700642703 |
9 | 214536783732 |
10 | 68031825347 |
11 | 26941212352 |
12 | 1122787936b |
13 | 6552764075 |
14 | 34154833a3 |
15 | 1b82937d32 |
hex | fd70345c3 |
68031825347 has 2 divisors, whose sum is σ = 68031825348. Its totient is φ = 68031825346.
The previous prime is 68031825313. The next prime is 68031825397. The reversal of 68031825347 is 74352813086.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 68031825347 - 220 = 68030776771 is a prime.
It is not a weakly prime, because it can be changed into another prime (68031825397) 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, 34015912673 + 34015912674.
It is an arithmetic number, because the mean of its divisors is an integer number (34015912674).
Almost surely, 268031825347 is an apocalyptic number.
68031825347 is a deficient number, since it is larger than the sum of its proper divisors (1).
68031825347 is an equidigital number, since it uses as much as digits as its factorization.
68031825347 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 967680, while the sum is 47.
The spelling of 68031825347 in words is "sixty-eight billion, thirty-one million, eight hundred twenty-five thousand, three hundred forty-seven".
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