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12228874 = 272233917
BaseRepresentation
bin101110101001…
…100100001010
3212000021212021
4232221210022
511112310444
61114035054
7205641460
oct56514412
925007767
1012228874
1169a2809
124118a8a
1326c2228
1418a4830
151118584
hexba990a

12228874 has 16 divisors (see below), whose sum is σ = 21063168. Its totient is φ = 5216112.

The previous prime is 12228869. The next prime is 12228889. The reversal of 12228874 is 47882221.

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 7 ways as a sum of consecutive naturals, for example, 1164 + ... + 5080.

It is an arithmetic number, because the mean of its divisors is an integer number (1316448).

Almost surely, 212228874 is an apocalyptic number.

12228874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12228874 is a deficient number, since it is larger than the sum of its proper divisors (8834294).

12228874 is a wasteful number, since it uses less digits than its factorization.

12228874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149.

The product of its digits is 14336, while the sum is 34.

The square root of 12228874 is about 3496.9806976876. The cubic root of 12228874 is about 230.3892212397.

The spelling of 12228874 in words is "twelve million, two hundred twenty-eight thousand, eight hundred seventy-four".

Divisors: 1 2 7 14 223 446 1561 3122 3917 7834 27419 54838 873491 1746982 6114437 12228874