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18374013174 = 23112312104093
BaseRepresentation
bin10001000111001011…
…010011000011110110
31202102111221120122110
4101013023103003312
5300112221410144
612235122511450
71220216351346
oct210713230366
952374846573
1018374013174
117879719060
123689505586
13196a87375a
14c64388d26
157281370b9
hex4472d30f6

18374013174 has 32 divisors (see below), whose sum is σ = 41831748864. Its totient is φ = 5325800480.

The previous prime is 18374013157. The next prime is 18374013179. The reversal of 18374013174 is 47131047381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18374013179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6050529 + ... + 6053564.

It is an arithmetic number, because the mean of its divisors is an integer number (1307242152).

Almost surely, 218374013174 is an apocalyptic number.

18374013174 is an abundant number, since it is smaller than the sum of its proper divisors (23457735690).

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

18374013174 is a wasteful number, since it uses less digits than its factorization.

18374013174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12104132.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 18374013174 in words is "eighteen billion, three hundred seventy-four million, thirteen thousand, one hundred seventy-four".

Divisors: 1 2 3 6 11 22 23 33 46 66 69 138 253 506 759 1518 12104093 24208186 36312279 72624558 133145023 266290046 278394139 399435069 556788278 798870138 835182417 1670364834 3062335529 6124671058 9187006587 18374013174