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12984923 = 717195743
BaseRepresentation
bin110001100010…
…001001011011
3220102200222002
4301202021123
511311004143
61142151215
7215240630
oct61421133
926380862
1012984923
117369846
12442250b
1328c83b3
141a20187
1512175b8
hexc6225b

12984923 has 16 divisors (see below), whose sum is σ = 16542720. Its totient is φ = 9922176.

The previous prime is 12984913. The next prime is 12984931. The reversal of 12984923 is 32948921.

It is a cyclic number.

It is not a de Polignac number, because 12984923 - 210 = 12983899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12984913) 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 15 ways as a sum of consecutive naturals, for example, 611 + ... + 5132.

It is an arithmetic number, because the mean of its divisors is an integer number (1033920).

Almost surely, 212984923 is an apocalyptic number.

12984923 is a deficient number, since it is larger than the sum of its proper divisors (3557797).

12984923 is a wasteful number, since it uses less digits than its factorization.

12984923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786.

The product of its digits is 31104, while the sum is 38.

The square root of 12984923 is about 3603.4598651851. The cubic root of 12984923 is about 235.0425334209.

The spelling of 12984923 in words is "twelve million, nine hundred eighty-four thousand, nine hundred twenty-three".

Divisors: 1 7 17 19 119 133 323 2261 5743 40201 97631 109117 683417 763819 1854989 12984923