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80766439130 = 25132327012187
BaseRepresentation
bin100101100111000001…
…1100000111011011010
321201110202022012211102
41023032003200323122
52310402202023010
6101034213031402
75556316256006
oct1131603407332
9251422265742
1080766439130
1131286605153
12137a0625562
137801b66cb0
143ca2889706
15217a916ba5
hex12ce0e0eda

80766439130 has 32 divisors (see below), whose sum is σ = 163369713024. Its totient is φ = 28524868416.

The previous prime is 80766439129. The next prime is 80766439163. The reversal of 80766439130 is 3193466708.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13503104 + ... + 13509083.

It is an arithmetic number, because the mean of its divisors is an integer number (5105303532).

Almost surely, 280766439130 is an apocalyptic number.

80766439130 is an abundant number, since it is smaller than the sum of its proper divisors (82603273894).

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

80766439130 is a wasteful number, since it uses less digits than its factorization.

80766439130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27012230.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 80766439130 in words is "eighty billion, seven hundred sixty-six million, four hundred thirty-nine thousand, one hundred thirty".

Divisors: 1 2 5 10 13 23 26 46 65 115 130 230 299 598 1495 2990 27012187 54024374 135060935 270121870 351158431 621280301 702316862 1242560602 1755792155 3106401505 3511584310 6212803010 8076643913 16153287826 40383219565 80766439130