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68317953366 = 2313875871197
BaseRepresentation
bin111111101000000100…
…010011110101010110
320112100012021121200010
4333220010103311112
52104403344001431
651215042501050
74635661010415
oct775004236526
9215305247603
1068317953366
1126a78781593
12112a7664786
136599b15aa0
14344148547c
151b9cb06846
hexfe8113d56

68317953366 has 16 divisors (see below), whose sum is σ = 147146361264. Its totient is φ = 21020908704.

The previous prime is 68317953343. The next prime is 68317953373. The reversal of 68317953366 is 66335971386.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437935521 + ... + 437935676.

It is an arithmetic number, because the mean of its divisors is an integer number (9196647579).

Almost surely, 268317953366 is an apocalyptic number.

68317953366 is an abundant number, since it is smaller than the sum of its proper divisors (78828407898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68317953366 is a wasteful number, since it uses less digits than its factorization.

68317953366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875871215.

The product of its digits is 14696640, while the sum is 57.

The spelling of 68317953366 in words is "sixty-eight billion, three hundred seventeen million, nine hundred fifty-three thousand, three hundred sixty-six".

Divisors: 1 2 3 6 13 26 39 78 875871197 1751742394 2627613591 5255227182 11386325561 22772651122 34158976683 68317953366