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18695106 = 2321038617
BaseRepresentation
bin100011101010…
…0001111000010
31022011210212100
41013110033002
514241220411
61504411230
7314622453
oct107241702
938153770
1018695106
11a609a01
126316b16
133b474c1
1426a912a
151994456
hex11d43c2

18695106 has 12 divisors (see below), whose sum is σ = 40506102. Its totient is φ = 6231696.

The previous prime is 18695099. The next prime is 18695119. The reversal of 18695106 is 60159681.

It can be written as a sum of positive squares in only one way, i.e., 9641025 + 9054081 = 3105^2 + 3009^2 .

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 5 ways as a sum of consecutive naturals, for example, 519291 + ... + 519326.

Almost surely, 218695106 is an apocalyptic number.

18695106 is an abundant number, since it is smaller than the sum of its proper divisors (21810996).

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

18695106 is a wasteful number, since it uses less digits than its factorization.

18695106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038625 (or 1038622 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 18695106 is about 4323.7837596254. The cubic root of 18695106 is about 265.4051285196.

The spelling of 18695106 in words is "eighteen million, six hundred ninety-five thousand, one hundred six".

Divisors: 1 2 3 6 9 18 1038617 2077234 3115851 6231702 9347553 18695106