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80168442055 = 5134161493147
BaseRepresentation
bin100101010101001101…
…0010101100011000111
321122221002001211001121
41022222122111203013
52303141110121210
6100455011534411
75535435341212
oct1125232254307
9248832054047
1080168442055
1130aa9aa5099
12136542ba407
137737cbcc80
143c472a4779
1521431926da
hex12aa6958c7

80168442055 has 32 divisors (see below), whose sum is σ = 107869220928. Its totient is φ = 56810419200.

The previous prime is 80168441993. The next prime is 80168442071. The reversal of 80168442055 is 55024486108.

It is not a de Polignac number, because 80168442055 - 227 = 80034224327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84009 + ... + 409138.

It is an arithmetic number, because the mean of its divisors is an integer number (3370913154).

Almost surely, 280168442055 is an apocalyptic number.

80168442055 is a deficient number, since it is larger than the sum of its proper divisors (27700778873).

80168442055 is a wasteful number, since it uses less digits than its factorization.

80168442055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493267.

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 80168442055 in words is "eighty billion, one hundred sixty-eight million, four hundred forty-two thousand, fifty-five".

Divisors: 1 5 13 41 61 65 205 305 533 793 2501 2665 3965 12505 32513 162565 493147 2465735 6410911 20219027 30081967 32054555 101095135 150409835 262847351 391065571 1233360647 1314236755 1955327855 6166803235 16033688411 80168442055