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18077094 = 234719839
BaseRepresentation
bin100010011110…
…1010110100110
31021000102010000
41010331112212
514111431334
61443242130
7306436620
oct104752646
937012100
1018077094
11a227652
126079346
13398c109
142587c10
1518c1299
hex113d5a6

18077094 has 80 divisors (see below), whose sum is σ = 48787200. Its totient is φ = 4887216.

The previous prime is 18077077. The next prime is 18077099. The reversal of 18077094 is 49077081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18077099) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 21127 + ... + 21965.

It is an arithmetic number, because the mean of its divisors is an integer number (609840).

Almost surely, 218077094 is an apocalyptic number.

18077094 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18077094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24393600).

18077094 is an abundant number, since it is smaller than the sum of its proper divisors (30710106).

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

18077094 is a wasteful number, since it uses less digits than its factorization.

18077094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 18077094 is about 4251.7165945063. The cubic root of 18077094 is about 262.4477610334.

The spelling of 18077094 in words is "eighteen million, seventy-seven thousand, ninety-four".

Divisors: 1 2 3 6 7 9 14 18 19 21 27 38 42 54 57 63 81 114 126 133 162 171 189 266 342 378 399 513 567 798 839 1026 1134 1197 1539 1678 2394 2517 3078 3591 5034 5873 7182 7551 10773 11746 15102 15941 17619 21546 22653 31882 35238 45306 47823 52857 67959 95646 105714 111587 135918 143469 158571 223174 286938 317142 334761 430407 475713 669522 860814 951426 1004283 1291221 2008566 2582442 3012849 6025698 9038547 18077094