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68195353 is a prime number
BaseRepresentation
bin1000001000010…
…01010000011001
311202022200102211
410010021100121
5114424222403
610433355121
71455436162
oct404112031
9152280384
1068195353
11355491a6
121aa08aa1
13111892a5
1490b2769
155ec106d
hex4109419

68195353 has 2 divisors, whose sum is σ = 68195354. Its totient is φ = 68195352.

The previous prime is 68195321. The next prime is 68195357. The reversal of 68195353 is 35359186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50580544 + 17614809 = 7112^2 + 4197^2 .

It is a cyclic number.

It is not a de Polignac number, because 68195353 - 25 = 68195321 is a prime.

It is not a weakly prime, because it can be changed into another prime (68195357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34097676 + 34097677.

It is an arithmetic number, because the mean of its divisors is an integer number (34097677).

Almost surely, 268195353 is an apocalyptic number.

It is an amenable number.

68195353 is a deficient number, since it is larger than the sum of its proper divisors (1).

68195353 is an equidigital number, since it uses as much as digits as its factorization.

68195353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 40.

The square root of 68195353 is about 8258.0477717194. The cubic root of 68195353 is about 408.5560009858.

The spelling of 68195353 in words is "sixty-eight million, one hundred ninety-five thousand, three hundred fifty-three".