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12227079 = 34075693
BaseRepresentation
bin101110101001…
…001000000111
3212000012101210
4232221020013
511112231304
61114022503
7205633314
oct56511007
925005353
1012227079
1169a1427
124117a33
1326c1477
1418a3d0b
151117c89
hexba9207

12227079 has 4 divisors (see below), whose sum is σ = 16302776. Its totient is φ = 8151384.

The previous prime is 12227077. The next prime is 12227081. The reversal of 12227079 is 97072221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97072221 = 332357407.

It is an interprime number because it is at equal distance from previous prime (12227077) and next prime (12227081).

It is not a de Polignac number, because 12227079 - 21 = 12227077 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 (12227071) 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, 2037844 + ... + 2037849.

It is an arithmetic number, because the mean of its divisors is an integer number (4075694).

Almost surely, 212227079 is an apocalyptic number.

12227079 is a deficient number, since it is larger than the sum of its proper divisors (4075697).

12227079 is an equidigital number, since it uses as much as digits as its factorization.

12227079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075696.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 12227079 is about 3496.7240382964. The cubic root of 12227079 is about 230.3779482234.

The spelling of 12227079 in words is "twelve million, two hundred twenty-seven thousand, seventy-nine".

Divisors: 1 3 4075693 12227079