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68017772326 = 2719255705911
BaseRepresentation
bin111111010110001011…
…001101011100100110
320111120021102211200211
4333112023031130212
52103300022203301
651125200530034
74625354345140
oct772613153446
9214507384624
1068017772326
1126934294089
121122302091a
13654c88377a
143413665c90
151b815ae051
hexfd62cd726

68017772326 has 16 divisors (see below), whose sum is σ = 122738837760. Its totient is φ = 27616238280.

The previous prime is 68017772299. The next prime is 68017772369. The reversal of 68017772326 is 62327771086.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68017772326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127852690 + ... + 127853221.

It is an arithmetic number, because the mean of its divisors is an integer number (7671177360).

Almost surely, 268017772326 is an apocalyptic number.

68017772326 is a deficient number, since it is larger than the sum of its proper divisors (54721065434).

68017772326 is a wasteful number, since it uses less digits than its factorization.

68017772326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255705939.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 68017772326 in words is "sixty-eight billion, seventeen million, seven hundred seventy-two thousand, three hundred twenty-six".

Divisors: 1 2 7 14 19 38 133 266 255705911 511411822 1789941377 3579882754 4858412309 9716824618 34008886163 68017772326