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68112413 is a prime number
BaseRepresentation
bin1000000111101…
…01000000011101
311202011110122222
410003311000131
5114414044123
610431515125
71454642315
oct403650035
9152143588
1068112413
11354a1956
121a988aa5
131115a605
149090445
155ea66c8
hex40f501d

68112413 has 2 divisors, whose sum is σ = 68112414. Its totient is φ = 68112412.

The previous prime is 68112391. The next prime is 68112463. The reversal of 68112413 is 31421186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38278969 + 29833444 = 6187^2 + 5462^2 .

It is a cyclic number.

It is not a de Polignac number, because 68112413 - 210 = 68111389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68112463) 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, 34056206 + 34056207.

It is an arithmetic number, because the mean of its divisors is an integer number (34056207).

Almost surely, 268112413 is an apocalyptic number.

It is an amenable number.

68112413 is a deficient number, since it is larger than the sum of its proper divisors (1).

68112413 is an equidigital number, since it uses as much as digits as its factorization.

68112413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 68112413 is about 8253.0244759118. The cubic root of 68112413 is about 408.3903035696.

Adding to 68112413 its reverse (31421186), we get a palindrome (99533599).

The spelling of 68112413 in words is "sixty-eight million, one hundred twelve thousand, four hundred thirteen".