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12224748 = 2231018729
BaseRepresentation
bin101110101000…
…100011101100
3212000002012110
4232220203230
511112142443
61114004020
7205623444
oct56504354
925002173
1012224748
11699a6a8
124116610
1326c03a3
1418a3124
151117233
hexba88ec

12224748 has 12 divisors (see below), whose sum is σ = 28524440. Its totient is φ = 4074912.

The previous prime is 12224731. The next prime is 12224749. The reversal of 12224748 is 84742221.

12224748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12224749) 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, 509353 + ... + 509376.

Almost surely, 212224748 is an apocalyptic number.

It is an amenable number.

12224748 is an abundant number, since it is smaller than the sum of its proper divisors (16299692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12224748 is a wasteful number, since it uses less digits than its factorization.

12224748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018736 (or 1018734 counting only the distinct ones).

The product of its digits is 7168, while the sum is 30.

The square root of 12224748 is about 3496.3907104327. The cubic root of 12224748 is about 230.3633073560.

Adding to 12224748 its reverse (84742221), we get a palindrome (96966969).

The spelling of 12224748 in words is "twelve million, two hundred twenty-four thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 1018729 2037458 3056187 4074916 6112374 12224748