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13092197 = 19689063
BaseRepresentation
bin110001111100…
…010101100101
3220122011010012
4301330111211
511322422242
61144340005
7216165446
oct61742545
926564105
1013092197
1174323a8
124474605
132935181
141a4b2cd
151239282
hexc7c565

13092197 has 4 divisors (see below), whose sum is σ = 13781280. Its totient is φ = 12403116.

The previous prime is 13092173. The next prime is 13092203. The reversal of 13092197 is 79129031.

It is a happy number.

13092197 is digitally balanced in base 3, 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 an emirpimes, since its reverse is a distinct semiprime: 79129031 = 83119521.

It is a cyclic number.

It is not a de Polignac number, because 13092197 - 28 = 13091941 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 (13092127) 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, 344513 + ... + 344550.

It is an arithmetic number, because the mean of its divisors is an integer number (3445320).

Almost surely, 213092197 is an apocalyptic number.

It is an amenable number.

13092197 is a deficient number, since it is larger than the sum of its proper divisors (689083).

13092197 is an equidigital number, since it uses as much as digits as its factorization.

13092197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689082.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 13092197 is about 3618.3141101900. The cubic root of 13092197 is about 235.6880214035.

The spelling of 13092197 in words is "thirteen million, ninety-two thousand, one hundred ninety-seven".

Divisors: 1 19 689063 13092197