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68812097 is a prime number
BaseRepresentation
bin1000001100111…
…11110101000001
311210111000110012
410012133311001
5120103441342
610454514305
71463615234
oct406376501
9153430405
1068812097
113592a602
121b065995
1311343c23
1491d341b
156093b82
hex419fd41

68812097 has 2 divisors, whose sum is σ = 68812098. Its totient is φ = 68812096.

The previous prime is 68812069. The next prime is 68812127. The reversal of 68812097 is 79021886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65141041 + 3671056 = 8071^2 + 1916^2 .

It is a cyclic number.

It is not a de Polignac number, because 68812097 - 210 = 68811073 is a prime.

It is not a weakly prime, because it can be changed into another prime (68811097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34406048 + 34406049.

It is an arithmetic number, because the mean of its divisors is an integer number (34406049).

Almost surely, 268812097 is an apocalyptic number.

It is an amenable number.

68812097 is a deficient number, since it is larger than the sum of its proper divisors (1).

68812097 is an equidigital number, since it uses as much as digits as its factorization.

68812097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 68812097 is about 8295.3057207073. The cubic root of 68812097 is about 409.7839373188.

The spelling of 68812097 in words is "sixty-eight million, eight hundred twelve thousand, ninety-seven".