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12984369 = 34328123
BaseRepresentation
bin110001100010…
…000000110001
3220102200012120
4301202000301
511310444434
61142144453
7215236206
oct61420061
926380176
1012984369
117369392
124422129
1328c8078
141a1dcad
151217349
hexc62031

12984369 has 4 divisors (see below), whose sum is σ = 17312496. Its totient is φ = 8656244.

The previous prime is 12984359. The next prime is 12984401. The reversal of 12984369 is 96348921.

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: 96348921 = 332116307.

It is a cyclic number.

It is not a de Polignac number, because 12984369 - 27 = 12984241 is a prime.

It is a super-2 number, since 2×129843692 = 337187676656322, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12984369.

It is not an unprimeable number, because it can be changed into a prime (12984329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2164059 + ... + 2164064.

It is an arithmetic number, because the mean of its divisors is an integer number (4328124).

Almost surely, 212984369 is an apocalyptic number.

It is an amenable number.

12984369 is a deficient number, since it is larger than the sum of its proper divisors (4328127).

12984369 is an equidigital number, since it uses as much as digits as its factorization.

12984369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328126.

The product of its digits is 93312, while the sum is 42.

The square root of 12984369 is about 3603.3829937990. The cubic root of 12984369 is about 235.0391906873.

The spelling of 12984369 in words is "twelve million, nine hundred eighty-four thousand, three hundred sixty-nine".

Divisors: 1 3 4328123 12984369