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68529083329 = 727917703199
BaseRepresentation
bin111111110100101001…
…101101001111000001
320112212220120010112101
4333310221231033001
52110321421131304
651252024030401
74644133411600
oct776451551701
9215786503471
1068529083329
1127076976663
1211346302401
136601799065
143461523a37
151bb140d8a4
hexff4a6d3c1

68529083329 has 12 divisors (see below), whose sum is σ = 80726592000. Its totient is φ = 57995676648.

The previous prime is 68529083327. The next prime is 68529083377. The reversal of 68529083329 is 92338092586.

It is not a de Polignac number, because 68529083329 - 21 = 68529083327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68529083329.

It is not an unprimeable number, because it can be changed into a prime (68529083327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8847729 + ... + 8855470.

It is an arithmetic number, because the mean of its divisors is an integer number (6727216000).

Almost surely, 268529083329 is an apocalyptic number.

It is an amenable number.

68529083329 is a deficient number, since it is larger than the sum of its proper divisors (12197508671).

68529083329 is a wasteful number, since it uses less digits than its factorization.

68529083329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17703292 (or 17703285 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 68529083329 in words is "sixty-eight billion, five hundred twenty-nine million, eighty-three thousand, three hundred twenty-nine".

Divisors: 1 7 49 79 553 3871 17703199 123922393 867456751 1398552721 9789869047 68529083329