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12745165 = 511032311
BaseRepresentation
bin110000100111…
…100111001101
3212222112002011
4300213213031
511230321130
61133101221
7213221626
oct60474715
925875064
1012745165
1172156a4
124327811
132843224
14199aa4d
1511bb52a
hexc279cd

12745165 has 8 divisors (see below), whose sum is σ = 15314688. Its totient is φ = 10182480.

The previous prime is 12745163. The next prime is 12745171. The reversal of 12745165 is 56154721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12745165 - 21 = 12745163 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 (12745163) 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 7 ways as a sum of consecutive naturals, for example, 4360 + ... + 6670.

It is an arithmetic number, because the mean of its divisors is an integer number (1914336).

Almost surely, 212745165 is an apocalyptic number.

It is an amenable number.

12745165 is a deficient number, since it is larger than the sum of its proper divisors (2569523).

12745165 is a wasteful number, since it uses less digits than its factorization.

12745165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419.

The product of its digits is 8400, while the sum is 31.

The square root of 12745165 is about 3570.0371146530. The cubic root of 12745165 is about 233.5869023451.

Adding to 12745165 its reverse (56154721), we get a palindrome (68899886).

The spelling of 12745165 in words is "twelve million, seven hundred forty-five thousand, one hundred sixty-five".

Divisors: 1 5 1103 2311 5515 11555 2549033 12745165