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12984263 = 16677789
BaseRepresentation
bin110001100001…
…111111000111
3220102200001122
4301201333013
511310444023
61142144155
7215235665
oct61417707
926380048
1012984263
1173692a6
12442205b
1328c7cc6
141a1dc35
1512172c8
hexc61fc7

12984263 has 4 divisors (see below), whose sum is σ = 12993720. Its totient is φ = 12974808.

The previous prime is 12984247. The next prime is 12984269. The reversal of 12984263 is 36248921.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12984263 - 24 = 12984247 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12984269) 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, 2228 + ... + 5561.

It is an arithmetic number, because the mean of its divisors is an integer number (3248430).

Almost surely, 212984263 is an apocalyptic number.

12984263 is a deficient number, since it is larger than the sum of its proper divisors (9457).

12984263 is an equidigital number, since it uses as much as digits as its factorization.

12984263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9456.

The product of its digits is 20736, while the sum is 35.

The square root of 12984263 is about 3603.3682853686. The cubic root of 12984263 is about 235.0385510921.

The spelling of 12984263 in words is "twelve million, nine hundred eighty-four thousand, two hundred sixty-three".

Divisors: 1 1667 7789 12984263