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13055436 = 22321392609
BaseRepresentation
bin110001110011…
…010111001100
3220120021200200
4301303113030
511320233221
61143453500
7215653332
oct61632714
926507620
1013055436
117407819
124457290
132921514
141a3bb52
15122d426
hexc735cc

13055436 has 36 divisors (see below), whose sum is σ = 33251400. Its totient is φ = 4318848.

The previous prime is 13055431. The next prime is 13055447. The reversal of 13055436 is 63455031.

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

It is not an unprimeable number, because it can be changed into a prime (13055431) 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 11 ways as a sum of consecutive naturals, for example, 3700 + ... + 6308.

It is an arithmetic number, because the mean of its divisors is an integer number (923650).

Almost surely, 213055436 is an apocalyptic number.

It is an amenable number.

13055436 is an abundant number, since it is smaller than the sum of its proper divisors (20195964).

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

13055436 is a wasteful number, since it uses less digits than its factorization.

13055436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758 (or 2753 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 13055436 is about 3613.2306873489. The cubic root of 13055436 is about 235.4672219651.

The spelling of 13055436 in words is "thirteen million, fifty-five thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 9 12 18 36 139 278 417 556 834 1251 1668 2502 2609 5004 5218 7827 10436 15654 23481 31308 46962 93924 362651 725302 1087953 1450604 2175906 3263859 4351812 6527718 13055436