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12319653 = 34106551
BaseRepresentation
bin101110111111…
…101110100101
3212011220101110
4232333232211
511123212103
61120015233
7206500233
oct56775645
925156343
1012319653
116a54a35
124161519
132724648
1418c9953
151135403
hexbbfba5

12319653 has 4 divisors (see below), whose sum is σ = 16426208. Its totient is φ = 8213100.

The previous prime is 12319649. The next prime is 12319661. The reversal of 12319653 is 35691321.

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 an emirpimes, since its reverse is a distinct semiprime: 35691321 = 311897107.

It is not a de Polignac number, because 12319653 - 22 = 12319649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12319653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12319663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2053273 + ... + 2053278.

It is an arithmetic number, because the mean of its divisors is an integer number (4106552).

Almost surely, 212319653 is an apocalyptic number.

It is an amenable number.

12319653 is a deficient number, since it is larger than the sum of its proper divisors (4106555).

12319653 is an equidigital number, since it uses as much as digits as its factorization.

12319653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4106554.

The product of its digits is 4860, while the sum is 30.

The square root of 12319653 is about 3509.9363242087. The cubic root of 12319653 is about 230.9579016628.

The spelling of 12319653 in words is "twelve million, three hundred nineteen thousand, six hundred fifty-three".

Divisors: 1 3 4106551 12319653