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12280067 is a prime number
BaseRepresentation
bin101110110110…
…000100000011
3212002220002022
4232312010003
511120430232
61115112055
7206243642
oct56660403
925086068
1012280067
116a28218
12414262b
13270c617
1418b9359
151128812
hexbb6103

12280067 has 2 divisors, whose sum is σ = 12280068. Its totient is φ = 12280066.

The previous prime is 12280063. The next prime is 12280087. The reversal of 12280067 is 76008221.

It is a weak prime.

It is an emirp because it is prime and its reverse (76008221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12280067 - 22 = 12280063 is a prime.

It is not a weakly prime, because it can be changed into another prime (12280063) 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 as a sum of consecutive naturals, namely, 6140033 + 6140034.

It is an arithmetic number, because the mean of its divisors is an integer number (6140034).

Almost surely, 212280067 is an apocalyptic number.

12280067 is a deficient number, since it is larger than the sum of its proper divisors (1).

12280067 is an equidigital number, since it uses as much as digits as its factorization.

12280067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12280067 is about 3504.2926533039. The cubic root of 12280067 is about 230.7102618531.

Adding to 12280067 its reverse (76008221), we get a palindrome (88288288).

The spelling of 12280067 in words is "twelve million, two hundred eighty thousand, sixty-seven".