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13418128044 = 2232883422113
BaseRepresentation
bin11000111111100100…
…00110001010101100
31021122010120112022100
430133302012022230
5204440020044134
610055245015100
7653341130556
oct143762061254
937563515270
1013418128044
115766202222
122725854490
13135abbc649
149140cc4d6
15537ee6999
hex31fc862ac

13418128044 has 36 divisors (see below), whose sum is σ = 33956538616. Its totient is φ = 4467633408.

The previous prime is 13418128043. The next prime is 13418128051. The reversal of 13418128044 is 44082181431.

It is a happy number.

13418128044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13418128043) 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 11 ways as a sum of consecutive naturals, for example, 179269 + ... + 242844.

Almost surely, 213418128044 is an apocalyptic number.

It is an amenable number.

13418128044 is an abundant number, since it is smaller than the sum of its proper divisors (20538410572).

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

13418128044 is a wasteful number, since it uses less digits than its factorization.

13418128044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423006 (or 423001 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The spelling of 13418128044 in words is "thirteen billion, four hundred eighteen million, one hundred twenty-eight thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 883 1766 2649 3532 5298 7947 10596 15894 31788 422113 844226 1266339 1688452 2532678 3799017 5065356 7598034 15196068 372725779 745451558 1118177337 1490903116 2236354674 3354532011 4472709348 6709064022 13418128044