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13192345 = 52638469
BaseRepresentation
bin110010010100…
…110010011001
3220211020111101
4302110302121
511334123340
61150431401
7220063435
oct62246231
926736441
1013192345
1174a0671
124502561
13296b92a
141a759c5
151258c9a
hexc94c99

13192345 has 4 divisors (see below), whose sum is σ = 15830820. Its totient is φ = 10553872.

The previous prime is 13192339. The next prime is 13192349. The reversal of 13192345 is 54329131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54329131 = 137396563.

It can be written as a sum of positive squares in 2 ways, for example, as 1413721 + 11778624 = 1189^2 + 3432^2 .

It is a cyclic number.

It is not a de Polignac number, because 13192345 - 23 = 13192337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13192349) 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 3 ways as a sum of consecutive naturals, for example, 1319230 + ... + 1319239.

It is an arithmetic number, because the mean of its divisors is an integer number (3957705).

Almost surely, 213192345 is an apocalyptic number.

It is an amenable number.

13192345 is a deficient number, since it is larger than the sum of its proper divisors (2638475).

13192345 is an equidigital number, since it uses as much as digits as its factorization.

13192345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638474.

The product of its digits is 3240, while the sum is 28.

The square root of 13192345 is about 3632.1267874346. The cubic root of 13192345 is about 236.2874561517.

The spelling of 13192345 in words is "thirteen million, one hundred ninety-two thousand, three hundred forty-five".

Divisors: 1 5 2638469 13192345