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12196009 = 73475021
BaseRepresentation
bin101110100001…
…100010101001
3211221121210001
4232201202221
511110233014
61113223001
7205443610
oct56414251
924847701
1012196009
116980051
124101a61
1326b0297
141896877
15110d974
hexba18a9

12196009 has 8 divisors (see below), whose sum is σ = 13981248. Its totient is φ = 10421520.

The previous prime is 12196001. The next prime is 12196013. The reversal of 12196009 is 90069121.

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

It is a cyclic number.

It is not a de Polignac number, because 12196009 - 23 = 12196001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12196001) 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 7 ways as a sum of consecutive naturals, for example, 82 + ... + 4939.

It is an arithmetic number, because the mean of its divisors is an integer number (1747656).

Almost surely, 212196009 is an apocalyptic number.

It is an amenable number.

12196009 is a deficient number, since it is larger than the sum of its proper divisors (1785239).

12196009 is an equidigital number, since it uses as much as digits as its factorization.

12196009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5375.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 12196009 is about 3492.2784825956. The cubic root of 12196009 is about 230.1826463499.

The spelling of 12196009 in words is "twelve million, one hundred ninety-six thousand, nine".

Divisors: 1 7 347 2429 5021 35147 1742287 12196009