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68401327068 = 2234607347801
BaseRepresentation
bin111111101101000010…
…010110101111011100
320112120000011102220000
4333231002112233130
52110041214431233
651231221454300
74641022454424
oct775502265734
9215500142800
1068401327068
1127010847478
121130b571390
1365b1187939
14344c589484
151ba50c4d13
hexfed096bdc

68401327068 has 60 divisors (see below), whose sum is σ = 179109682752. Its totient is φ = 22762814400.

The previous prime is 68401327067. The next prime is 68401327087. The reversal of 68401327068 is 86072310486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68401327067) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22768 + ... + 370568.

Almost surely, 268401327068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68401327068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89554841376).

68401327068 is an abundant number, since it is smaller than the sum of its proper divisors (110708355684).

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

68401327068 is a wasteful number, since it uses less digits than its factorization.

68401327068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348424 (or 348413 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 68401327068 in words is "sixty-eight billion, four hundred one million, three hundred twenty-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 607 1214 1821 2428 3642 5463 7284 10926 16389 21852 32778 49167 65556 98334 196668 347801 695602 1043403 1391204 2086806 3130209 4173612 6260418 9390627 12520836 18781254 28171881 37562508 56343762 112687524 211115207 422230414 633345621 844460828 1266691242 1900036863 2533382484 3800073726 5700110589 7600147452 11400221178 17100331767 22800442356 34200663534 68401327068