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12097165 = 52419433
BaseRepresentation
bin101110001001…
…011010001101
3211202121012011
4232021122031
511044102130
61111141221
7204552463
oct56113215
924677164
1012097165
116912863
124074811
1326772b2
14186c833
1510de52a
hexb8968d

12097165 has 4 divisors (see below), whose sum is σ = 14516604. Its totient is φ = 9677728.

The previous prime is 12097159. The next prime is 12097171. The reversal of 12097165 is 56179021.

12097165 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 an emirpimes, since its reverse is a distinct semiprime: 56179021 = 191294131.

It is an interprime number because it is at equal distance from previous prime (12097159) and next prime (12097171).

It can be written as a sum of positive squares in 2 ways, for example, as 2499561 + 9597604 = 1581^2 + 3098^2 .

It is a cyclic number.

It is not a de Polignac number, because 12097165 - 29 = 12096653 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1209712 + ... + 1209721.

It is an arithmetic number, because the mean of its divisors is an integer number (3629151).

Almost surely, 212097165 is an apocalyptic number.

It is an amenable number.

12097165 is a deficient number, since it is larger than the sum of its proper divisors (2419439).

12097165 is an equidigital number, since it uses as much as digits as its factorization.

12097165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419438.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 12097165 is about 3478.0978997147. The cubic root of 12097165 is about 229.5591112888.

The spelling of 12097165 in words is "twelve million, ninety-seven thousand, one hundred sixty-five".

Divisors: 1 5 2419433 12097165