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12230356 = 223498761
BaseRepresentation
bin101110101001…
…111011010100
3212000100220011
4232221323110
511112332411
61114050004
7205646005
oct56517324
925010804
1012230356
1169a3936
124119904
1326c2ac8
1418a51ac
151118c21
hexba9ed4

12230356 has 12 divisors (see below), whose sum is σ = 21466900. Its totient is φ = 6096960.

The previous prime is 12230353. The next prime is 12230359. The reversal of 12230356 is 65303221.

It is an interprime number because it is at equal distance from previous prime (12230353) and next prime (12230359).

It can be written as a sum of positive squares in 2 ways, for example, as 4579600 + 7650756 = 2140^2 + 2766^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230353) 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, 2985 + ... + 5776.

Almost surely, 212230356 is an apocalyptic number.

It is an amenable number.

12230356 is a deficient number, since it is larger than the sum of its proper divisors (9236544).

12230356 is a wasteful number, since it uses less digits than its factorization.

12230356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9114 (or 9112 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 12230356 is about 3497.1925883485. The cubic root of 12230356 is about 230.3985277121.

Adding to 12230356 its reverse (65303221), we get a palindrome (77533577).

The spelling of 12230356 in words is "twelve million, two hundred thirty thousand, three hundred fifty-six".

Divisors: 1 2 4 349 698 1396 8761 17522 35044 3057589 6115178 12230356