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68156076 = 2235679673
BaseRepresentation
bin1000000111111…
…11101010101100
311202020200120010
410003333222230
5114421443301
610432453220
71455213522
oct403775254
9152220503
1068156076
113552173a
121a9aa210
1311174451
1490a2312
155eb45d6
hex40ffaac

68156076 has 12 divisors (see below), whose sum is σ = 159030872. Its totient is φ = 22718688.

The previous prime is 68156057. The next prime is 68156083. The reversal of 68156076 is 67065186.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2839825 + ... + 2839848.

Almost surely, 268156076 is an apocalyptic number.

It is an amenable number.

68156076 is an abundant number, since it is smaller than the sum of its proper divisors (90874796).

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

68156076 is a wasteful number, since it uses less digits than its factorization.

68156076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5679680 (or 5679678 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 68156076 is about 8255.6693247731. The cubic root of 68156076 is about 408.4775502066.

The spelling of 68156076 in words is "sixty-eight million, one hundred fifty-six thousand, seventy-six".

Divisors: 1 2 3 4 6 12 5679673 11359346 17039019 22718692 34078038 68156076