Base | Representation |
---|---|
bin | 10111111010100100… |
… | …10011001111011111 |
3 | 1020010210112110022002 |
4 | 23331102103033133 |
5 | 202243334231042 |
6 | 5522012112515 |
7 | 633112552511 |
oct | 137522231737 |
9 | 36123473262 |
10 | 12839367647 |
11 | 5499540a47 |
12 | 25a3a6573b |
13 | 129801c482 |
14 | 89b2b3bb1 |
15 | 5022c2132 |
hex | 2fd4933df |
12839367647 has 8 divisors (see below), whose sum is σ = 12927551616. Its totient is φ = 12751318552.
The previous prime is 12839367643. The next prime is 12839367661. The reversal of 12839367647 is 74676393821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12839367647 - 22 = 12839367643 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12839367592 and 12839367601.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12839367643) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161168 + ... + 227274.
It is an arithmetic number, because the mean of its divisors is an integer number (1615943952).
Almost surely, 212839367647 is an apocalyptic number.
12839367647 is a deficient number, since it is larger than the sum of its proper divisors (88183969).
12839367647 is a wasteful number, since it uses less digits than its factorization.
12839367647 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 67437.
The product of its digits is 9144576, while the sum is 56.
The spelling of 12839367647 in words is "twelve billion, eight hundred thirty-nine million, three hundred sixty-seven thousand, six hundred forty-seven".
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