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80816801175 = 32521132653253
BaseRepresentation
bin100101101000100001…
…1101000010110010111
321201121021001212120100
41023101003220112113
52311003100114200
6101043212305143
75560500322065
oct1132103502627
9251537055510
1080816801175
1131301a82980
12137b54721b3
13780c41b116
143ca9439035
152180063d00
hex12d10e8597

80816801175 has 36 divisors (see below), whose sum is σ = 157911136344. Its totient is φ = 39183902400.

The previous prime is 80816801141. The next prime is 80816801179. The reversal of 80816801175 is 57110861808.

It is not a de Polignac number, because 80816801175 - 29 = 80816800663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 80816801175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80816801179) 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 35 ways as a sum of consecutive naturals, for example, 16324152 + ... + 16329101.

It is an arithmetic number, because the mean of its divisors is an integer number (4386420454).

Almost surely, 280816801175 is an apocalyptic number.

80816801175 is a deficient number, since it is larger than the sum of its proper divisors (77094335169).

80816801175 is a wasteful number, since it uses less digits than its factorization.

80816801175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32653280 (or 32653272 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 45.

The spelling of 80816801175 in words is "eighty billion, eight hundred sixteen million, eight hundred one thousand, one hundred seventy-five".

Divisors: 1 3 5 9 11 15 25 33 45 55 75 99 165 225 275 495 825 2475 32653253 97959759 163266265 293879277 359185783 489798795 816331325 1077557349 1469396385 1795928915 2448993975 3232672047 5387786745 7346981925 8979644575 16163360235 26938933725 80816801175