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68179587842 = 234687982783
BaseRepresentation
bin111111011111110100…
…011111001100000010
320111222112220220212002
4333133310133030002
52104112433302332
651153221104002
74632360635402
oct773764371402
9214875826762
1068179587842
1126a07666513
1211269258002
13657725b6b2
14342ad48802
151b908c4562
hexfdfd1f302

68179587842 has 8 divisors (see below), whose sum is σ = 102272434176. Its totient is φ = 34088776452.

The previous prime is 68179587841. The next prime is 68179587851. The reversal of 68179587842 is 24878597186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68179587841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422018 + ... + 560765.

It is an arithmetic number, because the mean of its divisors is an integer number (12784054272).

Almost surely, 268179587842 is an apocalyptic number.

68179587842 is a deficient number, since it is larger than the sum of its proper divisors (34092846334).

68179587842 is a wasteful number, since it uses less digits than its factorization.

68179587842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017472.

The product of its digits is 54190080, while the sum is 65.

The spelling of 68179587842 in words is "sixty-eight billion, one hundred seventy-nine million, five hundred eighty-seven thousand, eight hundred forty-two".

Divisors: 1 2 34687 69374 982783 1965566 34089793921 68179587842