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68182966019 = 7172069276929
BaseRepresentation
bin111111100000000001…
…010111111100000011
320111222210021112211202
4333200001113330003
52104114314403034
651153421331415
74632431435330
oct774001277403
9214883245752
1068182966019
1126a095635a3
121126a406b6b
136577b7220c
14342b587987
151b90d4047e
hexfe0057f03

68182966019 has 16 divisors (see below), whose sum is σ = 82547294400. Its totient is φ = 54977961984.

The previous prime is 68182965979. The next prime is 68182966037. The reversal of 68182966019 is 91066928186.

It is a happy number.

68182966019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 68182966019 - 220 = 68181917443 is a prime.

It is a super-2 number, since 2×681829660192 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68182966099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107747 + ... + 384675.

It is an arithmetic number, because the mean of its divisors is an integer number (5159205900).

Almost surely, 268182966019 is an apocalyptic number.

68182966019 is a deficient number, since it is larger than the sum of its proper divisors (14364328381).

68182966019 is a wasteful number, since it uses less digits than its factorization.

68182966019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279022.

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

The spelling of 68182966019 in words is "sixty-eight billion, one hundred eighty-two million, nine hundred sixty-six thousand, nineteen".

Divisors: 1 7 17 119 2069 14483 35173 246211 276929 1938503 4707793 32954551 572966101 4010762707 9740423717 68182966019