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12863212 = 227145293
BaseRepresentation
bin110001000100…
…011011101100
3220012112000021
4301010123230
511243110322
61135411524
7214223035
oct61043354
926175007
1012863212
11729635a
124383ba4
132884b8b
1419cba8c
1511e14c7
hexc446ec

12863212 has 12 divisors (see below), whose sum is σ = 22828176. Its totient is φ = 6340880.

The previous prime is 12863177. The next prime is 12863251. The reversal of 12863212 is 21236821.

It is an unprimeable number.

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, 22363 + ... + 22930.

It is an arithmetic number, because the mean of its divisors is an integer number (1902348).

Almost surely, 212863212 is an apocalyptic number.

It is an amenable number.

12863212 is a deficient number, since it is larger than the sum of its proper divisors (9964964).

12863212 is a wasteful number, since it uses less digits than its factorization.

12863212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45368 (or 45366 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 12863212 is about 3586.5320296911. The cubic root of 12863212 is about 234.3058556804.

The spelling of 12863212 in words is "twelve million, eight hundred sixty-three thousand, two hundred twelve".

Divisors: 1 2 4 71 142 284 45293 90586 181172 3215803 6431606 12863212