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68850858329 = 1171719122611
BaseRepresentation
bin100000000011111010…
…1001011100101011001
320120201100000222211222
41000013311023211121
52112001304431304
651344000501425
74655121432251
oct1000765134531
9216640028758
1068850858329
1127221572a10
121141601a875
13665334c176
143492164961
151bce7be4be
hex1007d4b959

68850858329 has 16 divisors (see below), whose sum is σ = 76274472960. Its totient is φ = 61623786000.

The previous prime is 68850858289. The next prime is 68850858331. The reversal of 68850858329 is 92385805886.

It is a cyclic number.

It is not a de Polignac number, because 68850858329 - 216 = 68850792793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68850854329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500234 + ... + 622844.

It is an arithmetic number, because the mean of its divisors is an integer number (4767154560).

Almost surely, 268850858329 is an apocalyptic number.

It is an amenable number.

68850858329 is a deficient number, since it is larger than the sum of its proper divisors (7423614631).

68850858329 is a wasteful number, since it uses less digits than its factorization.

68850858329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123412.

The product of its (nonzero) digits is 33177600, while the sum is 62.

The spelling of 68850858329 in words is "sixty-eight billion, eight hundred fifty million, eight hundred fifty-eight thousand, three hundred twenty-nine".

Divisors: 1 11 71 719 781 7909 51049 122611 561539 1348721 8705381 88157309 95759191 969730399 6259168939 68850858329