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13163207 = 67319559
BaseRepresentation
bin110010001101…
…101011000111
3220202202112012
4302031223013
511332210312
61150044435
7216612461
oct62155307
926682465
1013163207
117480792
1244a971b
13295b5a5
141a69131
151250322
hexc8dac7

13163207 has 4 divisors (see below), whose sum is σ = 13183440. Its totient is φ = 13142976.

The previous prime is 13163201. The next prime is 13163221. The reversal of 13163207 is 70236131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70236131 = 710033733.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13163207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13163201) 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 3 ways as a sum of consecutive naturals, for example, 9107 + ... + 10452.

It is an arithmetic number, because the mean of its divisors is an integer number (3295860).

Almost surely, 213163207 is an apocalyptic number.

13163207 is a deficient number, since it is larger than the sum of its proper divisors (20233).

13163207 is an equidigital number, since it uses as much as digits as its factorization.

13163207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20232.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 13163207 is about 3628.1134216008. The cubic root of 13163207 is about 236.1133648115.

Adding to 13163207 its reverse (70236131), we get a palindrome (83399338).

The spelling of 13163207 in words is "thirteen million, one hundred sixty-three thousand, two hundred seven".

Divisors: 1 673 19559 13163207