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68193241 is a prime number
BaseRepresentation
bin1000001000010…
…00101111011001
311202022120112121
410010020233121
5114424140431
610433341241
71455430054
oct404105731
9152276477
1068193241
1135547656
121aa07821
131118833c
1490b1a9b
155ec0611
hex4108bd9

68193241 has 2 divisors, whose sum is σ = 68193242. Its totient is φ = 68193240.

The previous prime is 68193233. The next prime is 68193247. The reversal of 68193241 is 14239186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67584841 + 608400 = 8221^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 68193241 - 23 = 68193233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68193197 and 68193206.

It is not a weakly prime, because it can be changed into another prime (68193247) 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, 34096620 + 34096621.

It is an arithmetic number, because the mean of its divisors is an integer number (34096621).

Almost surely, 268193241 is an apocalyptic number.

It is an amenable number.

68193241 is a deficient number, since it is larger than the sum of its proper divisors (1).

68193241 is an equidigital number, since it uses as much as digits as its factorization.

68193241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 68193241 is about 8257.9198954700. The cubic root of 68193241 is about 408.5517833026.

The spelling of 68193241 in words is "sixty-eight million, one hundred ninety-three thousand, two hundred forty-one".