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12330657 = 333712343
BaseRepresentation
bin101111000010…
…011010100001
3212012110111000
4233002122201
511124040112
61120142213
7206544303
oct57023241
925173430
1012330657
116a62229
124167969
132729661
1418cd973
1511387dc
hexbc26a1

12330657 has 16 divisors (see below), whose sum is σ = 18762880. Its totient is φ = 7997616.

The previous prime is 12330631. The next prime is 12330671. The reversal of 12330657 is 75603321.

It is a happy number.

12330657 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 0 + 657 = 666.

It is not a de Polignac number, because 12330657 - 28 = 12330401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12330657.

It is not an unprimeable number, because it can be changed into a prime (12330697) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5173 + ... + 7170.

It is an arithmetic number, because the mean of its divisors is an integer number (1172680).

Almost surely, 212330657 is an apocalyptic number.

It is an amenable number.

12330657 is a deficient number, since it is larger than the sum of its proper divisors (6432223).

12330657 is a wasteful number, since it uses less digits than its factorization.

12330657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12389 (or 12383 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 12330657 is about 3511.5035241332. The cubic root of 12330657 is about 231.0266456023.

Adding to 12330657 its reverse (75603321), we get a palindrome (87933978).

The spelling of 12330657 in words is "twelve million, three hundred thirty thousand, six hundred fifty-seven".

Divisors: 1 3 9 27 37 111 333 999 12343 37029 111087 333261 456691 1370073 4110219 12330657