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13013361 = 321445929
BaseRepresentation
bin110001101001…
…000101110001
3220111010222100
4301221011301
511312411421
61142531013
7215416554
oct61510561
926433870
1013013361
117389149
124436a69
13290831a
141a2a69b
151220c26
hexc69171

13013361 has 6 divisors (see below), whose sum is σ = 18797090. Its totient is φ = 8675568.

The previous prime is 13013353. The next prime is 13013369. The reversal of 13013361 is 16331031.

13013361 is a `hidden beast` number, since 1 + 301 + 3 + 361 = 666.

13013361 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13013353) and next prime (13013369).

It can be written as a sum of positive squares in only one way, i.e., 12960000 + 53361 = 3600^2 + 231^2 .

It is not a de Polignac number, because 13013361 - 23 = 13013353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13013369) 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 5 ways as a sum of consecutive naturals, for example, 722956 + ... + 722973.

Almost surely, 213013361 is an apocalyptic number.

It is an amenable number.

13013361 is a deficient number, since it is larger than the sum of its proper divisors (5783729).

13013361 is a wasteful number, since it uses less digits than its factorization.

13013361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445935 (or 1445932 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 13013361 is about 3607.4036369666. The cubic root of 13013361 is about 235.2139955055.

Adding to 13013361 its reverse (16331031), we get a palindrome (29344392).

The spelling of 13013361 in words is "thirteen million, thirteen thousand, three hundred sixty-one".

Divisors: 1 3 9 1445929 4337787 13013361