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12196117 = 31673851
BaseRepresentation
bin101110100001…
…100100010101
3211221121221001
4232201210111
511110233432
61113223301
7205444123
oct56414425
924847831
1012196117
11698013a
124101b31
1326b034b
141896913
15110d9e7
hexba1915

12196117 has 4 divisors (see below), whose sum is σ = 12203136. Its totient is φ = 12189100.

The previous prime is 12196109. The next prime is 12196159. The reversal of 12196117 is 71169121.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 71169121 = 521136601.

It is a cyclic number.

It is not a de Polignac number, because 12196117 - 23 = 12196109 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 (12196517) 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, 1242 + ... + 5092.

It is an arithmetic number, because the mean of its divisors is an integer number (3050784).

Almost surely, 212196117 is an apocalyptic number.

It is an amenable number.

12196117 is a deficient number, since it is larger than the sum of its proper divisors (7019).

12196117 is an equidigital number, since it uses as much as digits as its factorization.

12196117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7018.

The product of its digits is 756, while the sum is 28.

The square root of 12196117 is about 3492.2939452457. The cubic root of 12196117 is about 230.1833257976.

The spelling of 12196117 in words is "twelve million, one hundred ninety-six thousand, one hundred seventeen".

Divisors: 1 3167 3851 12196117