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18044052 = 223132347107
BaseRepresentation
bin100010011010…
…1010010010100
31020221201210020
41010311102110
514104402202
61442425140
7306241365
oct104652224
936851706
1018044052
11a204844
1260621b0
13397a070
142579b6c
1518b65bc
hex1135494

18044052 has 96 divisors (see below), whose sum is σ = 48771072. Its totient is φ = 5149056.

The previous prime is 18044051. The next prime is 18044063. The reversal of 18044052 is 25044081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18044051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168583 + ... + 168689.

It is an arithmetic number, because the mean of its divisors is an integer number (508032).

Almost surely, 218044052 is an apocalyptic number.

18044052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18044052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24385536).

18044052 is an abundant number, since it is smaller than the sum of its proper divisors (30727020).

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

18044052 is a wasteful number, since it uses less digits than its factorization.

18044052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 18044052 is about 4247.8290926072. The cubic root of 18044052 is about 262.2877595081.

The spelling of 18044052 in words is "eighteen million, forty-four thousand, fifty-two".

Divisors: 1 2 3 4 6 12 13 23 26 39 46 47 52 69 78 92 94 107 138 141 156 188 214 276 282 299 321 428 564 598 611 642 897 1081 1196 1222 1284 1391 1794 1833 2162 2444 2461 2782 3243 3588 3666 4173 4324 4922 5029 5564 6486 7332 7383 8346 9844 10058 12972 14053 14766 15087 16692 20116 28106 29532 30174 31993 42159 56212 60348 63986 65377 84318 95979 115667 127972 130754 168636 191958 196131 231334 261508 347001 383916 392262 462668 694002 784524 1388004 1503671 3007342 4511013 6014684 9022026 18044052