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68711029 is a prime number
BaseRepresentation
bin1000001100001…
…11001001110101
311210021212210221
410012013021311
5120042223104
610452414341
71463014462
oct406071165
9153255727
1068711029
1135870682
121b0173b1
1311309c1a
1491a8669
156073c54
hex4187275

68711029 has 2 divisors, whose sum is σ = 68711030. Its totient is φ = 68711028.

The previous prime is 68711023. The next prime is 68711047. The reversal of 68711029 is 92011786.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64802500 + 3908529 = 8050^2 + 1977^2 .

It is a cyclic number.

It is not a de Polignac number, because 68711029 - 23 = 68711021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68710985 and 68711003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68711021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34355514 + 34355515.

It is an arithmetic number, because the mean of its divisors is an integer number (34355515).

Almost surely, 268711029 is an apocalyptic number.

It is an amenable number.

68711029 is a deficient number, since it is larger than the sum of its proper divisors (1).

68711029 is an equidigital number, since it uses as much as digits as its factorization.

68711029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 68711029 is about 8289.2116030416. The cubic root of 68711029 is about 409.5832151687.

The spelling of 68711029 in words is "sixty-eight million, seven hundred eleven thousand, twenty-nine".