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13018049 = 113493391
BaseRepresentation
bin110001101010…
…001111000001
3220111101101222
4301222033001
511313034144
61143004425
7215436332
oct61521701
926441358
1013018049
117391720
124439715
13290a4b5
141a2c289
1512222ee
hexc6a3c1

13018049 has 8 divisors (see below), whose sum is σ = 14246400. Its totient is φ = 11797200.

The previous prime is 13018037. The next prime is 13018051. The reversal of 13018049 is 94081031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13018049 - 220 = 11969473 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13018009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2144 + ... + 5534.

It is an arithmetic number, because the mean of its divisors is an integer number (1780800).

Almost surely, 213018049 is an apocalyptic number.

It is an amenable number.

13018049 is a deficient number, since it is larger than the sum of its proper divisors (1228351).

13018049 is a wasteful number, since it uses less digits than its factorization.

13018049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 13018049 is about 3608.0533532641. The cubic root of 13018049 is about 235.2422370137.

The spelling of 13018049 in words is "thirteen million, eighteen thousand, forty-nine".

Divisors: 1 11 349 3391 3839 37301 1183459 13018049