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67243795964 = 22191038590163
BaseRepresentation
bin111110101000000010…
…101110010111111100
320102120100001202201122
4332220002232113330
52100203402432324
650520311530112
74600235556242
oct765002562774
9212510052648
1067243795964
11265774081a4
1211047989938
1364584129a7
14337c952792
151b38677a5e
hexfa80ae5fc

67243795964 has 24 divisors (see below), whose sum is σ = 125072787840. Its totient is φ = 31543074864.

The previous prime is 67243795963. The next prime is 67243795973. The reversal of 67243795964 is 46959734276.

It is a super-3 number, since 3×672437959643 (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67243795897 and 67243795906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67243795963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4287254 + ... + 4302909.

It is an arithmetic number, because the mean of its divisors is an integer number (5211366160).

Almost surely, 267243795964 is an apocalyptic number.

It is an amenable number.

67243795964 is a deficient number, since it is larger than the sum of its proper divisors (57828991876).

67243795964 is a wasteful number, since it uses less digits than its factorization.

67243795964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8590289 (or 8590287 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 62.

The spelling of 67243795964 in words is "sixty-seven billion, two hundred forty-three million, seven hundred ninety-five thousand, nine hundred sixty-four".

Divisors: 1 2 4 19 38 76 103 206 412 1957 3914 7828 8590163 17180326 34360652 163213097 326426194 652852388 884786789 1769573578 3539147156 16810948991 33621897982 67243795964