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18605068 = 2223434703
BaseRepresentation
bin100011011111…
…0010000001100
31022000020100121
41012332100030
514230330233
61502434324
7314066116
oct106762014
938006317
1018605068
11a558299
1262929a4
133b15521
1426843b6
15197792d
hex11be40c

18605068 has 24 divisors (see below), whose sum is σ = 34771968. Its totient is φ = 8689296.

The previous prime is 18605063. The next prime is 18605071. The reversal of 18605068 is 86050681.

It is a happy number.

It is a super-2 number, since 2×186050682 = 692297110569248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18605063) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1605 + ... + 6307.

It is an arithmetic number, because the mean of its divisors is an integer number (1448832).

Almost surely, 218605068 is an apocalyptic number.

It is an amenable number.

18605068 is a deficient number, since it is larger than the sum of its proper divisors (16166900).

18605068 is a wasteful number, since it uses less digits than its factorization.

18605068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773 (or 4771 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 18605068 is about 4313.3592477326. The cubic root of 18605068 is about 264.9783677607.

The spelling of 18605068 in words is "eighteen million, six hundred five thousand, sixty-eight".

Divisors: 1 2 4 23 43 46 86 92 172 989 1978 3956 4703 9406 18812 108169 202229 216338 404458 432676 808916 4651267 9302534 18605068