Base | Representation |
---|---|
bin | 10000111010101100… |
… | …110101011001001001 |
3 | 1201212221002101222021 |
4 | 100322230311121021 |
5 | 244200130410440 |
6 | 12202244324441 |
7 | 1212065260132 |
oct | 207254653111 |
9 | 51787071867 |
10 | 18164700745 |
11 | 7781555584 |
12 | 362b3a3721 |
13 | 19363a8849 |
14 | c44660c89 |
15 | 714a8d84a |
hex | 43ab35649 |
18164700745 has 8 divisors (see below), whose sum is σ = 21844722816. Its totient is φ = 14500372656.
The previous prime is 18164700713. The next prime is 18164700751. The reversal of 18164700745 is 54700746181.
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 18164700745 - 25 = 18164700713 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3920947 + ... + 3925576.
It is an arithmetic number, because the mean of its divisors is an integer number (2730590352).
Almost surely, 218164700745 is an apocalyptic number.
It is an amenable number.
18164700745 is a deficient number, since it is larger than the sum of its proper divisors (3680022071).
18164700745 is an equidigital number, since it uses as much as digits as its factorization.
18164700745 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7846991.
The product of its (nonzero) digits is 188160, while the sum is 43.
The spelling of 18164700745 in words is "eighteen billion, one hundred sixty-four million, seven hundred thousand, seven hundred forty-five".
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