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80171036055 = 32511161961689
BaseRepresentation
bin100101010101010010…
…0001110110110010111
321122221020221121100200
41022222210032312113
52303142241123210
6100455143311543
75535466363665
oct1125244166627
9248836847320
1080171036055
1131000506aa0
121365514b5b3
1377386ba896
143c4777bc35
1521435060c0
hex12aa90ed97

80171036055 has 24 divisors (see below), whose sum is σ = 151596141840. Its totient is φ = 38870805120.

The previous prime is 80171036053. The next prime is 80171036059. The reversal of 80171036055 is 55063017108.

80171036055 is a `hidden beast` number, since 80 + 171 + 0 + 360 + 55 = 666.

It is not a de Polignac number, because 80171036055 - 21 = 80171036053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80171036053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80980350 + ... + 80981339.

It is an arithmetic number, because the mean of its divisors is an integer number (6316505910).

Almost surely, 280171036055 is an apocalyptic number.

80171036055 is a deficient number, since it is larger than the sum of its proper divisors (71425105785).

80171036055 is a wasteful number, since it uses less digits than its factorization.

80171036055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161961711 (or 161961708 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 80171036055 in words is "eighty billion, one hundred seventy-one million, thirty-six thousand, fifty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 495 161961689 485885067 809808445 1457655201 1781578579 2429425335 5344735737 7288276005 8907892895 16034207211 26723678685 80171036055