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91962816068 = 22130317644439
BaseRepresentation
bin101010110100101101…
…0010011011001000100
322210101001021002120202
41111221122103121010
53001314440103233
6110125214150032
76433632016244
oct1255132233104
9283331232522
1091962816068
1136001680932
12159a61b2318
13889767a7c6
144645877b24
1525d3846be8
hex1569693644

91962816068 has 12 divisors (see below), whose sum is σ = 161058448320. Its totient is φ = 45946116552.

The previous prime is 91962816007. The next prime is 91962816073. The reversal of 91962816068 is 86061826919.

It is a happy number.

It is a super-3 number, since 3×919628160683 (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8817008 + ... + 8827431.

It is an arithmetic number, because the mean of its divisors is an integer number (13421537360).

Almost surely, 291962816068 is an apocalyptic number.

It is an amenable number.

91962816068 is a deficient number, since it is larger than the sum of its proper divisors (69095632252).

91962816068 is a wasteful number, since it uses less digits than its factorization.

91962816068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17645746 (or 17645744 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 91962816068 in words is "ninety-one billion, nine hundred sixty-two million, eight hundred sixteen thousand, sixty-eight".

Divisors: 1 2 4 1303 2606 5212 17644439 35288878 70577756 22990704017 45981408034 91962816068