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68126477 is a prime number
BaseRepresentation
bin1000000111110…
…00011100001101
311202012011221212
410003320130031
5114420021402
610432104205
71455031316
oct403703415
9152164855
1068126477
1135501481
121a995065
1311163b33
14909560d
155eaa952
hex40f870d

68126477 has 2 divisors, whose sum is σ = 68126478. Its totient is φ = 68126476.

The previous prime is 68126473. The next prime is 68126489. The reversal of 68126477 is 77462186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62504836 + 5621641 = 7906^2 + 2371^2 .

It is a cyclic number.

It is not a de Polignac number, because 68126477 - 22 = 68126473 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68126473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34063238 + 34063239.

It is an arithmetic number, because the mean of its divisors is an integer number (34063239).

Almost surely, 268126477 is an apocalyptic number.

It is an amenable number.

68126477 is a deficient number, since it is larger than the sum of its proper divisors (1).

68126477 is an equidigital number, since it uses as much as digits as its factorization.

68126477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 41.

The square root of 68126477 is about 8253.8764832047. The cubic root of 68126477 is about 408.4184100762.

The spelling of 68126477 in words is "sixty-eight million, one hundred twenty-six thousand, four hundred seventy-seven".