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12618113 is a prime number
BaseRepresentation
bin110000001000…
…100110000001
3212202001210112
4300020212001
511212234423
61130241105
7212152334
oct60104601
925661715
1012618113
1171391a2
124286195
1327ca451
14196661b
151193a78
hexc08981

12618113 has 2 divisors, whose sum is σ = 12618114. Its totient is φ = 12618112.

The previous prime is 12618091. The next prime is 12618127. The reversal of 12618113 is 31181621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11336689 + 1281424 = 3367^2 + 1132^2 .

It is a cyclic number.

It is not a de Polignac number, because 12618113 - 216 = 12552577 is a prime.

It is not a weakly prime, because it can be changed into another prime (12618173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6309056 + 6309057.

It is an arithmetic number, because the mean of its divisors is an integer number (6309057).

Almost surely, 212618113 is an apocalyptic number.

It is an amenable number.

12618113 is a deficient number, since it is larger than the sum of its proper divisors (1).

12618113 is an equidigital number, since it uses as much as digits as its factorization.

12618113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 23.

The square root of 12618113 is about 3552.1983334268. The cubic root of 12618113 is about 232.8081273265.

Adding to 12618113 its reverse (31181621), we get a palindrome (43799734).

The spelling of 12618113 in words is "twelve million, six hundred eighteen thousand, one hundred thirteen".