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18342671 = 173229463
BaseRepresentation
bin100010111111…
…0001100001111
31021111220102012
41011332030033
514143431141
61453051435
7311624114
oct105761417
937456365
1018342671
11a399136
126186b7b
133a52c69
14261690b
151924ceb
hex117e30f

18342671 has 8 divisors (see below), whose sum is σ = 18569280. Its totient is φ = 18117792.

The previous prime is 18342647. The next prime is 18342673. The reversal of 18342671 is 17624381.

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 18342671 - 210 = 18341647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18342673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39386 + ... + 39848.

It is an arithmetic number, because the mean of its divisors is an integer number (2321160).

Almost surely, 218342671 is an apocalyptic number.

18342671 is a deficient number, since it is larger than the sum of its proper divisors (226609).

18342671 is a wasteful number, since it uses less digits than its factorization.

18342671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its digits is 8064, while the sum is 32.

The square root of 18342671 is about 4282.8344586267. The cubic root of 18342671 is about 263.7267556614.

The spelling of 18342671 in words is "eighteen million, three hundred forty-two thousand, six hundred seventy-one".

Divisors: 1 173 229 463 39617 80099 106027 18342671