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12226468 = 2217179801
BaseRepresentation
bin101110101000…
…111110100100
3212000011120011
4232220332210
511112221333
61114020004
7205631452
oct56507644
925004504
1012226468
1169a0a21
124117604
1326c10c7
1418a39d2
1511179cd
hexba8fa4

12226468 has 12 divisors (see below), whose sum is σ = 22655052. Its totient is φ = 5753600.

The previous prime is 12226457. The next prime is 12226469. The reversal of 12226468 is 86462221.

It can be written as a sum of positive squares in 2 ways, for example, as 11437924 + 788544 = 3382^2 + 888^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12226469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89833 + ... + 89968.

It is an arithmetic number, because the mean of its divisors is an integer number (1887921).

Almost surely, 212226468 is an apocalyptic number.

It is an amenable number.

12226468 is a deficient number, since it is larger than the sum of its proper divisors (10428584).

12226468 is a wasteful number, since it uses less digits than its factorization.

12226468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179822 (or 179820 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 12226468 is about 3496.6366697156. The cubic root of 12226468 is about 230.3741107500.

Adding to 12226468 its reverse (86462221), we get a palindrome (98688689).

The spelling of 12226468 in words is "twelve million, two hundred twenty-six thousand, four hundred sixty-eight".

Divisors: 1 2 4 17 34 68 179801 359602 719204 3056617 6113234 12226468