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13074349 = 101129449
BaseRepresentation
bin110001110111…
…111110101101
3220121020122011
4301313332231
511321334344
61144121221
7216062431
oct61677655
926536564
1013074349
11741aa52
124466211
13292a002
141a449c1
151233d34
hexc77fad

13074349 has 4 divisors (see below), whose sum is σ = 13203900. Its totient is φ = 12944800.

The previous prime is 13074311. The next prime is 13074353. The reversal of 13074349 is 94347031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6340324 + 6734025 = 2518^2 + 2595^2 .

It is a cyclic number.

It is not a de Polignac number, because 13074349 - 217 = 12943277 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13074349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13074379) 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 3 ways as a sum of consecutive naturals, for example, 64624 + ... + 64825.

It is an arithmetic number, because the mean of its divisors is an integer number (3300975).

Almost surely, 213074349 is an apocalyptic number.

It is an amenable number.

13074349 is a deficient number, since it is larger than the sum of its proper divisors (129551).

13074349 is a wasteful number, since it uses less digits than its factorization.

13074349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129550.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 13074349 is about 3615.8469270698. The cubic root of 13074349 is about 235.5808717582.

The spelling of 13074349 in words is "thirteen million, seventy-four thousand, three hundred forty-nine".

Divisors: 1 101 129449 13074349