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12232222 = 26116111
BaseRepresentation
bin101110101010…
…011000011110
3212000110110021
4232222120132
511112412342
61114102354
7205654312
oct56523036
925013407
1012232222
1169a5282
12411a9ba
1326c3902
1418a5b42
151119567
hexbaa61e

12232222 has 4 divisors (see below), whose sum is σ = 18348336. Its totient is φ = 6116110.

The previous prime is 12232217. The next prime is 12232243. The reversal of 12232222 is 22223221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22223221 = 23966227.

It is a super-3 number, since 3×122322223 (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12232196 and 12232205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3058054 + ... + 3058057.

It is an arithmetic number, because the mean of its divisors is an integer number (4587084).

Almost surely, 212232222 is an apocalyptic number.

12232222 is a deficient number, since it is larger than the sum of its proper divisors (6116114).

12232222 is an equidigital number, since it uses as much as digits as its factorization.

12232222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116113.

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

The square root of 12232222 is about 3497.4593635952. The cubic root of 12232222 is about 230.4102445090.

Adding to 12232222 its reverse (22223221), we get a palindrome (34455443).

Subtracting 12232222 from its reverse (22223221), we obtain a palindrome (9990999).

The spelling of 12232222 in words is "twelve million, two hundred thirty-two thousand, two hundred twenty-two".

Divisors: 1 2 6116111 12232222