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12270232 = 2313127929
BaseRepresentation
bin101110110011…
…101010011000
3212002101121001
4232303222120
511120121412
61114554344
7206203162
oct56635230
925071531
1012270232
116a20897
1241389b4
132707cc0
1418b5932
151125957
hexbb3a98

12270232 has 32 divisors (see below), whose sum is σ = 24998400. Its totient is φ = 5612544.

The previous prime is 12270229. The next prime is 12270233. The reversal of 12270232 is 23207221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12270233) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 12744 + ... + 13672.

It is an arithmetic number, because the mean of its divisors is an integer number (781200).

Almost surely, 212270232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12270232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12499200).

12270232 is an abundant number, since it is smaller than the sum of its proper divisors (12728168).

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

12270232 is a wasteful number, since it uses less digits than its factorization.

12270232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 12270232 is about 3502.8890933057. The cubic root of 12270232 is about 230.6486541152.

Adding to 12270232 its reverse (23207221), we get a palindrome (35477453).

The spelling of 12270232 in words is "twelve million, two hundred seventy thousand, two hundred thirty-two".

Divisors: 1 2 4 8 13 26 52 104 127 254 508 929 1016 1651 1858 3302 3716 6604 7432 12077 13208 24154 48308 96616 117983 235966 471932 943864 1533779 3067558 6135116 12270232