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80766868312 = 2313776604503
BaseRepresentation
bin100101100111000010…
…1001001101101011000
321201110210010000120001
41023032011021231120
52310402304241222
6101034230142344
75556323024164
oct1131605115530
9251423100501
1080766868312
1131286878649
12137a07b19b4
137801c87450
143ca295bca4
15217a99de27
hex12ce149b58

80766868312 has 16 divisors (see below), whose sum is σ = 163086945840. Its totient is φ = 37277016096.

The previous prime is 80766868283. The next prime is 80766868313. The reversal of 80766868312 is 21386866708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80766868313) by changing a digit.

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, 388302148 + ... + 388302355.

It is an arithmetic number, because the mean of its divisors is an integer number (10192934115).

Almost surely, 280766868312 is an apocalyptic number.

It is an amenable number.

80766868312 is an abundant number, since it is smaller than the sum of its proper divisors (82320077528).

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

80766868312 is a wasteful number, since it uses less digits than its factorization.

80766868312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776604522 (or 776604518 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 80766868312 in words is "eighty billion, seven hundred sixty-six million, eight hundred sixty-eight thousand, three hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 776604503 1553209006 3106418012 6212836024 10095858539 20191717078 40383434156 80766868312