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18344134 = 212772221
BaseRepresentation
bin100010111111…
…0100011000110
31021111222102101
41011332203012
514144003014
61453102314
7311631304
oct105764306
937458371
1018344134
11a39a246
12618799a
133a53823
142617274
151925474
hex117e8c6

18344134 has 8 divisors (see below), whose sum is σ = 27733248. Its totient is φ = 9099720.

The previous prime is 18344107. The next prime is 18344141. The reversal of 18344134 is 43144381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35857 + ... + 36364.

It is an arithmetic number, because the mean of its divisors is an integer number (3466656).

Almost surely, 218344134 is an apocalyptic number.

18344134 is a deficient number, since it is larger than the sum of its proper divisors (9389114).

18344134 is a wasteful number, since it uses less digits than its factorization.

18344134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72350.

The product of its digits is 4608, while the sum is 28.

The square root of 18344134 is about 4283.0052533239. The cubic root of 18344134 is about 263.7337670355.

The spelling of 18344134 in words is "eighteen million, three hundred forty-four thousand, one hundred thirty-four".

Divisors: 1 2 127 254 72221 144442 9172067 18344134