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68279 is a prime number
BaseRepresentation
bin10000101010110111
310110122212
4100222313
54141104
61244035
7403031
oct205267
9113585
1068279
1147332
123361b
1325103
141ac51
151536e
hex10ab7

68279 has 2 divisors, whose sum is σ = 68280. Its totient is φ = 68278.

The previous prime is 68261. The next prime is 68281. The reversal of 68279 is 97286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68279 - 28 = 68023 is a prime.

It is a Sophie Germain prime.

Together with 68281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34139 + 34140.

It is an arithmetic number, because the mean of its divisors is an integer number (34140).

268279 is an apocalyptic number.

68279 is a deficient number, since it is larger than the sum of its proper divisors (1).

68279 is an equidigital number, since it uses as much as digits as its factorization.

68279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 32.

The square root of 68279 is about 261.3025066853. The cubic root of 68279 is about 40.8722974830.

The spelling of 68279 in words is "sixty-eight thousand, two hundred seventy-nine".