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12232260 = 2232567957
BaseRepresentation
bin101110101010…
…011001000100
3212000110111200
4232222121010
511112413020
61114102500
7205654365
oct56523104
925013450
1012232260
1169a5307
12411aa30
1326c3931
1418a5b6c
151119590
hexbaa644

12232260 has 36 divisors (see below), whose sum is σ = 37105068. Its totient is φ = 3261888.

The previous prime is 12232247. The next prime is 12232271. The reversal of 12232260 is 6223221.

It can be written as a sum of positive squares in 2 ways, for example, as 2005056 + 10227204 = 1416^2 + 3198^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a nialpdrome in base 16.

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 11 ways as a sum of consecutive naturals, for example, 33799 + ... + 34158.

Almost surely, 212232260 is an apocalyptic number.

12232260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12232260 is an abundant number, since it is smaller than the sum of its proper divisors (24872808).

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

12232260 is a wasteful number, since it uses less digits than its factorization.

12232260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67972 (or 67967 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12232260 is about 3497.4647961059. The cubic root of 12232260 is about 230.4104831023.

Adding to 12232260 its reverse (6223221), we get a palindrome (18455481).

The spelling of 12232260 in words is "twelve million, two hundred thirty-two thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 67957 135914 203871 271828 339785 407742 611613 679570 815484 1019355 1223226 1359140 2038710 2446452 3058065 4077420 6116130 12232260