Base | Representation |
---|---|
bin | 100010101000… |
… | …1110000100000 |
3 | 1021011122202111 |
4 | 1011101300200 |
5 | 14122120142 |
6 | 1445125104 |
7 | 310235365 |
oct | 105216040 |
9 | 37148674 |
10 | 18160672 |
11 | a284422 |
12 | 60b9794 |
13 | 39bb17a |
14 | 25aa46c |
15 | 18dae17 |
hex | 1151c20 |
18160672 has 24 divisors (see below), whose sum is σ = 36363600. Its totient is φ = 8925504.
The previous prime is 18160669. The next prime is 18160679. The reversal of 18160672 is 27606181.
It is not an unprimeable number, because it can be changed into a prime (18160679) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2922 + ... + 6697.
It is an arithmetic number, because the mean of its divisors is an integer number (1515150).
Almost surely, 218160672 is an apocalyptic number.
It is an amenable number.
18160672 is an abundant number, since it is smaller than the sum of its proper divisors (18202928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18160672 is an equidigital number, since it uses as much as digits as its factorization.
18160672 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9688 (or 9680 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 31.
The square root of 18160672 is about 4261.5339961099. The cubic root of 18160672 is about 262.8516080390.
The spelling of 18160672 in words is "eighteen million, one hundred sixty thousand, six hundred seventy-two".
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