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12306330 = 234515193
BaseRepresentation
bin101110111100…
…011110011010
3212011020010000
4232330132122
511122300310
61115433430
7206413341
oct56743632
925136100
1012306330
116a45a23
124155876
13271b56a
1418c4b58
1511314c0
hexbbc79a

12306330 has 40 divisors (see below), whose sum is σ = 33092532. Its totient is φ = 3281472.

The previous prime is 12306313. The next prime is 12306331. The reversal of 12306330 is 3360321.

It is a happy number.

12306330 is a `hidden beast` number, since 1 + 2 + 30 + 633 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11512449 + 793881 = 3393^2 + 891^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12306331) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6787 + ... + 8406.

Almost surely, 212306330 is an apocalyptic number.

12306330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12306330 is an abundant number, since it is smaller than the sum of its proper divisors (20786202).

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

12306330 is a wasteful number, since it uses less digits than its factorization.

12306330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15212 (or 15203 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 12306330 is about 3508.0379131361. The cubic root of 12306330 is about 230.8746157129.

Adding to 12306330 its reverse (3360321), we get a palindrome (15666651).

The spelling of 12306330 in words is "twelve million, three hundred six thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 15193 30386 45579 75965 91158 136737 151930 227895 273474 410211 455790 683685 820422 1230633 1367370 2051055 2461266 4102110 6153165 12306330