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68236663286 = 21122551110533
BaseRepresentation
bin111111100011001110…
…001101100111110110
320112010112022122122102
4333203032031213312
52104222041211121
651203020302102
74633653032201
oct774316154766
9215115278572
1068236663286
1126a368aa100
12112843a1932
13658602344c
143434764938
151b958ea90b
hexfe338d9f6

68236663286 has 24 divisors (see below), whose sum is σ = 112551024432. Its totient is φ = 31004226000.

The previous prime is 68236663283. The next prime is 68236663303.

68236663286 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68236663283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 562076 + ... + 672608.

It is an arithmetic number, because the mean of its divisors is an integer number (4689626018).

Almost surely, 268236663286 is an apocalyptic number.

68236663286 is a deficient number, since it is larger than the sum of its proper divisors (44314361146).

68236663286 is a wasteful number, since it uses less digits than its factorization.

68236663286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113108 (or 113097 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 56.

The spelling of 68236663286 in words is "sixty-eight billion, two hundred thirty-six million, six hundred sixty-three thousand, two hundred eighty-six".

Divisors: 1 2 11 22 121 242 2551 5102 28061 56122 110533 221066 308671 617342 1215863 2431726 13374493 26748986 281969683 563939366 3101666513 6203333026 34118331643 68236663286