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13016897 = 17477451
BaseRepresentation
bin110001101001…
…111101000001
3220111022211022
4301221331001
511313020042
61142555225
7215433065
oct61517501
926438738
1013016897
117390873
124438b15
132909b0a
141a2baa5
151221cd2
hexc69f41

13016897 has 4 divisors (see below), whose sum is σ = 13026096. Its totient is φ = 13007700.

The previous prime is 13016893. The next prime is 13016903. The reversal of 13016897 is 79861031.

13016897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79861031 = 151528881.

It is a cyclic number.

It is not a de Polignac number, because 13016897 - 22 = 13016893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13016891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1979 + ... + 5472.

It is an arithmetic number, because the mean of its divisors is an integer number (3256524).

Almost surely, 213016897 is an apocalyptic number.

It is an amenable number.

13016897 is a deficient number, since it is larger than the sum of its proper divisors (9199).

13016897 is an equidigital number, since it uses as much as digits as its factorization.

13016897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9198.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 13016897 is about 3607.8937068600. The cubic root of 13016897 is about 235.2352977494.

The spelling of 13016897 in words is "thirteen million, sixteen thousand, eight hundred ninety-seven".

Divisors: 1 1747 7451 13016897