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12242230 = 25711131223
BaseRepresentation
bin101110101100…
…110100110110
3212000222011221
4232230310312
511113222410
61114220554
7206025430
oct56546466
925028157
1012242230
116a01850
12412475a
1326c8330
1418a9650
15111c4da
hexbacd36

12242230 has 64 divisors (see below), whose sum is σ = 29611008. Its totient is φ = 3519360.

The previous prime is 12242221. The next prime is 12242257. The reversal of 12242230 is 3224221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9399 + ... + 10621.

It is an arithmetic number, because the mean of its divisors is an integer number (462672).

Almost surely, 212242230 is an apocalyptic number.

12242230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12242230 is an abundant number, since it is smaller than the sum of its proper divisors (17368778).

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

12242230 is a wasteful number, since it uses less digits than its factorization.

12242230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261.

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

The square root of 12242230 is about 3498.8898239299. The cubic root of 12242230 is about 230.4730653965.

Adding to 12242230 its reverse (3224221), we get a palindrome (15466451).

Subtracting from 12242230 its reverse (3224221), we obtain a square (9018009 = 30032).

It can be divided in two parts, 12 and 242230, that added together give a palindrome (242242).

The spelling of 12242230 in words is "twelve million, two hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 11 13 14 22 26 35 55 65 70 77 91 110 130 143 154 182 286 385 455 715 770 910 1001 1223 1430 2002 2446 5005 6115 8561 10010 12230 13453 15899 17122 26906 31798 42805 67265 79495 85610 94171 111293 134530 158990 174889 188342 222586 349778 470855 556465 874445 941710 1112930 1224223 1748890 2448446 6121115 12242230