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12230224 = 241940231
BaseRepresentation
bin101110101001…
…111001010000
3212000100201021
4232221321100
511112331344
61114045224
7205645426
oct56517120
925010637
1012230224
1169a3826
124119814
1326c2a26
1418a5116
151118b84
hexba9e50

12230224 has 20 divisors (see below), whose sum is σ = 24943840. Its totient is φ = 5793120.

The previous prime is 12230221. The next prime is 12230233. The reversal of 12230224 is 42203221.

12230224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12230198 and 12230207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230221) 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, 19812 + ... + 20419.

It is an arithmetic number, because the mean of its divisors is an integer number (1247192).

Almost surely, 212230224 is an apocalyptic number.

It is an amenable number.

12230224 is an abundant number, since it is smaller than the sum of its proper divisors (12713616).

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

12230224 is a wasteful number, since it uses less digits than its factorization.

12230224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40258 (or 40252 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12230224 is about 3497.1737160170. The cubic root of 12230224 is about 230.3976988260.

Adding to 12230224 its reverse (42203221), we get a palindrome (54433445).

The spelling of 12230224 in words is "twelve million, two hundred thirty thousand, two hundred twenty-four".

Divisors: 1 2 4 8 16 19 38 76 152 304 40231 80462 160924 321848 643696 764389 1528778 3057556 6115112 12230224