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12210330 = 23511163227
BaseRepresentation
bin101110100101…
…000010011010
3211222100102110
4232211002122
511111212310
61113413150
7205533426
oct56450232
924870373
1012210330
11698a890
12410a1b6
1326b6962
14189bb86
151112d20
hexba509a

12210330 has 64 divisors (see below), whose sum is σ = 32306688. Its totient is φ = 2928960.

The previous prime is 12210307. The next prime is 12210343. The reversal of 12210330 is 3301221.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53677 + ... + 53903.

It is an arithmetic number, because the mean of its divisors is an integer number (504792).

Almost surely, 212210330 is an apocalyptic number.

12210330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16153344).

12210330 is an abundant number, since it is smaller than the sum of its proper divisors (20096358).

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

12210330 is a wasteful number, since it uses less digits than its factorization.

12210330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 12210330 is about 3494.3282616263. The cubic root of 12210330 is about 230.2727074032.

Adding to 12210330 its reverse (3301221), we get a palindrome (15511551).

The spelling of 12210330 in words is "twelve million, two hundred ten thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 163 165 227 326 330 454 489 681 815 978 1135 1362 1630 1793 2270 2445 2497 3405 3586 4890 4994 5379 6810 7491 8965 10758 12485 14982 17930 24970 26895 37001 37455 53790 74002 74910 111003 185005 222006 370010 407011 555015 814022 1110030 1221033 2035055 2442066 4070110 6105165 12210330