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18374803411 = 97571331753
BaseRepresentation
bin10001000111001110…
…010011111111010011
31202102120102201122111
4101013032103333103
5300112422202121
612235151450151
71220226152266
oct210716237723
952376381574
1018374803411
11787a108848
123689826957
13196aa8c353
14c64512cdd
157282412e1
hex447393fd3

18374803411 has 8 divisors (see below), whose sum is σ = 18596802224. Its totient is φ = 18153469440.

The previous prime is 18374803397. The next prime is 18374803429. The reversal of 18374803411 is 11430847381.

It is a happy number.

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 18374803411 - 211 = 18374801363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18374803451) 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, 110490 + ... + 221263.

It is an arithmetic number, because the mean of its divisors is an integer number (2324600278).

Almost surely, 218374803411 is an apocalyptic number.

18374803411 is a deficient number, since it is larger than the sum of its proper divisors (221998813).

18374803411 is an equidigital number, since it uses as much as digits as its factorization.

18374803411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332421.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 18374803411 in words is "eighteen billion, three hundred seventy-four million, eight hundred three thousand, four hundred eleven".

Divisors: 1 97 571 55387 331753 32180041 189430963 18374803411