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67713176045 = 5291813736917
BaseRepresentation
bin111111000100000001…
…010001000111101101
320110210001021202011002
4333010001101013231
52102134033113140
651035040210045
74614665333264
oct770401210755
9213701252132
1067713176045
1126798360419
1211159009925
136501736898
1433c50175db
151b64993415
hexfc40511ed

67713176045 has 32 divisors (see below), whose sum is σ = 84760996320. Its totient is φ = 51866680320.

The previous prime is 67713176033. The next prime is 67713176071. The reversal of 67713176045 is 54067131776.

It can be written as a sum of positive squares in 16 ways, for example, as 27769556164 + 39943619881 = 166642^2 + 199859^2 .

It is not a de Polignac number, because 67713176045 - 24 = 67713176029 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 9785927 + ... + 9792843.

It is an arithmetic number, because the mean of its divisors is an integer number (2648781135).

Almost surely, 267713176045 is an apocalyptic number.

It is an amenable number.

67713176045 is a deficient number, since it is larger than the sum of its proper divisors (17047820275).

67713176045 is a wasteful number, since it uses less digits than its factorization.

67713176045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 67713176045 in words is "sixty-seven billion, seven hundred thirteen million, one hundred seventy-six thousand, forty-five".

Divisors: 1 5 29 145 181 373 905 1865 5249 6917 10817 26245 34585 54085 67513 200593 337565 1002965 1251977 1957877 2580041 6259885 9789385 12900205 36307333 74821189 181536665 374105945 466987421 2334937105 13542635209 67713176045