Base | Representation |
---|---|
bin | 10001001101101000… |
… | …110101000001010101 |
3 | 1202201001221002202201 |
4 | 101031220311001111 |
5 | 300322444331444 |
6 | 12253554204501 |
7 | 1223003646565 |
oct | 211550650125 |
9 | 52631832681 |
10 | 18482417749 |
11 | 7924930014 |
12 | 36b9883731 |
13 | 198716a883 |
14 | c74926da5 |
15 | 7328ebdd4 |
hex | 44da35055 |
18482417749 has 2 divisors, whose sum is σ = 18482417750. Its totient is φ = 18482417748.
The previous prime is 18482417743. The next prime is 18482417797. The reversal of 18482417749 is 94771428481.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 15855342724 + 2627075025 = 125918^2 + 51255^2 .
It is an emirp because it is prime and its reverse (94771428481) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 18482417749 - 23 = 18482417741 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 18482417749.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (18482417741) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9241208874 + 9241208875.
It is an arithmetic number, because the mean of its divisors is an integer number (9241208875).
Almost surely, 218482417749 is an apocalyptic number.
It is an amenable number.
18482417749 is a deficient number, since it is larger than the sum of its proper divisors (1).
18482417749 is an equidigital number, since it uses as much as digits as its factorization.
18482417749 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 3612672, while the sum is 55.
The spelling of 18482417749 in words is "eighteen billion, four hundred eighty-two million, four hundred seventeen thousand, seven hundred forty-nine".
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