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18079674 = 233119689
BaseRepresentation
bin100010011110…
…1111110111010
31021000112122120
41010331332322
514112022144
61443302110
7306450264
oct104757672
937015576
1018079674
11a229588
12607a936
133990342
142588b34
1518c1e19
hex113dfba

18079674 has 16 divisors (see below), whose sum is σ = 36279360. Its totient is φ = 6006560.

The previous prime is 18079669. The next prime is 18079709. The reversal of 18079674 is 47697081.

It is a super-2 number, since 2×180796742 = 653749223892552, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2979 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (2267460).

Almost surely, 218079674 is an apocalyptic number.

18079674 is an abundant number, since it is smaller than the sum of its proper divisors (18199686).

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

18079674 is a wasteful number, since it uses less digits than its factorization.

18079674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 18079674 is about 4252.0199905457. The cubic root of 18079674 is about 262.4602461340.

The spelling of 18079674 in words is "eighteen million, seventy-nine thousand, six hundred seventy-four".

Divisors: 1 2 3 6 311 622 933 1866 9689 19378 29067 58134 3013279 6026558 9039837 18079674