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68196361 is a prime number
BaseRepresentation
bin1000001000010…
…01100000001001
311202022201211011
410010021200021
5114424240421
610433403521
71455442132
oct404114011
9152281734
1068196361
1135549a32
121aa095a1
131118989c
1490b2c89
155ec14e1
hex4109809

68196361 has 2 divisors, whose sum is σ = 68196362. Its totient is φ = 68196360.

The previous prime is 68196347. The next prime is 68196433. The reversal of 68196361 is 16369186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58430736 + 9765625 = 7644^2 + 3125^2 .

It is a cyclic number.

It is not a de Polignac number, because 68196361 - 215 = 68163593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68196341) 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, 34098180 + 34098181.

It is an arithmetic number, because the mean of its divisors is an integer number (34098181).

Almost surely, 268196361 is an apocalyptic number.

It is an amenable number.

68196361 is a deficient number, since it is larger than the sum of its proper divisors (1).

68196361 is an equidigital number, since it uses as much as digits as its factorization.

68196361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 68196361 is about 8258.1088028676. The cubic root of 68196361 is about 408.5580139403.

The spelling of 68196361 in words is "sixty-eight million, one hundred ninety-six thousand, three hundred sixty-one".