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18670168 = 2311212161
BaseRepresentation
bin100011100111…
…0001001011000
31022010112122201
41013032021120
514234421133
61504055544
7314456656
oct107161130
938115581
1018670168
11a5a21a0
1263045b4
133b3904a
14269ddd6
15198bd7d
hex11ce258

18670168 has 16 divisors (see below), whose sum is σ = 38189160. Its totient is φ = 8486400.

The previous prime is 18670123. The next prime is 18670177. The reversal of 18670168 is 86107681.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105993 + ... + 106168.

Almost surely, 218670168 is an apocalyptic number.

It is an amenable number.

18670168 is an abundant number, since it is smaller than the sum of its proper divisors (19518992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18670168 is a wasteful number, since it uses less digits than its factorization.

18670168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212178 (or 212174 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 18670168 is about 4320.8989805363. The cubic root of 18670168 is about 265.2870652105.

The spelling of 18670168 in words is "eighteen million, six hundred seventy thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 88 212161 424322 848644 1697288 2333771 4667542 9335084 18670168