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68140296612 = 223215311236307
BaseRepresentation
bin111111011101011110…
…100110100110100100
320111212210222201102100
4333131132212212210
52104022403442422
651145255012100
74631402651613
oct773536464644
9214783881370
1068140296612
112699746a423
121125806a030
13656c08264b
143425a3b87a
151b8c2127ac
hexfdd7a69a4

68140296612 has 36 divisors (see below), whose sum is σ = 172356170896. Its totient is φ = 22698578160.

The previous prime is 68140296559. The next prime is 68140296613. The reversal of 68140296612 is 21669204186.

68140296612 is a `hidden beast` number, since 6 + 8 + 1 + 4 + 0 + 29 + 6 + 612 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (68140296613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 563038 + ... + 673269.

Almost surely, 268140296612 is an apocalyptic number.

It is an amenable number.

68140296612 is an abundant number, since it is smaller than the sum of its proper divisors (104215874284).

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

68140296612 is a wasteful number, since it uses less digits than its factorization.

68140296612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237848 (or 1237843 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 68140296612 in words is "sixty-eight billion, one hundred forty million, two hundred ninety-six thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 1531 3062 4593 6124 9186 13779 18372 27558 55116 1236307 2472614 3708921 4945228 7417842 11126763 14835684 22253526 44507052 1892786017 3785572034 5678358051 7571144068 11356716102 17035074153 22713432204 34070148306 68140296612