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256079 is a prime number
BaseRepresentation
bin111110100001001111
3111000021102
4332201033
531143304
65253315
72114405
oct764117
9430242
10256079
1116543a
1210423b
138c735
1469475
1550d1e
hex3e84f

256079 has 2 divisors, whose sum is σ = 256080. Its totient is φ = 256078.

The previous prime is 256057. The next prime is 256093. The reversal of 256079 is 970652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256079 - 212 = 251983 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 (256019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128039 + 128040.

It is an arithmetic number, because the mean of its divisors is an integer number (128040).

2256079 is an apocalyptic number.

256079 is a deficient number, since it is larger than the sum of its proper divisors (1).

256079 is an equidigital number, since it uses as much as digits as its factorization.

256079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 256079 is about 506.0424883347. The cubic root of 256079 is about 63.5025729009.

The spelling of 256079 in words is "two hundred fifty-six thousand, seventy-nine".