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67028126368 = 257299232707
BaseRepresentation
bin111110011011001100…
…000000101010100000
320102000022020121122211
4332123030000222200
52044233200020433
650443045211504
74562006450020
oct763314005240
9212008217584
1067028126368
11264766a2465
1210ba7700b94
136422830348
14335c051a80
151b247758cd
hexf9b300aa0

67028126368 has 24 divisors (see below), whose sum is σ = 150813284832. Its totient is φ = 28726339776.

The previous prime is 67028126357. The next prime is 67028126377. The reversal of 67028126368 is 86362182076.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149616130 + ... + 149616577.

It is an arithmetic number, because the mean of its divisors is an integer number (6283886868).

Almost surely, 267028126368 is an apocalyptic number.

It is an amenable number.

67028126368 is an abundant number, since it is smaller than the sum of its proper divisors (83785158464).

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

67028126368 is a wasteful number, since it uses less digits than its factorization.

67028126368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299232724 (or 299232716 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 67028126368 in words is "sixty-seven billion, twenty-eight million, one hundred twenty-six thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 299232707 598465414 1196930828 2094628949 2393861656 4189257898 4787723312 8378515796 9575446624 16757031592 33514063184 67028126368