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85008158178 = 23131108152873
BaseRepresentation
bin100111100101011100…
…0011000110111100010
322010102100211212110220
41033022320120313202
52343044042030203
6103015135503510
76066403264566
oct1171270306742
9263370755426
1085008158178
1133062986489
1214585087b96
13802988bb18
144185d616a6
152327ed7653
hex13cae18de2

85008158178 has 16 divisors (see below), whose sum is σ = 171314152416. Its totient is φ = 28119746720.

The previous prime is 85008158177. The next prime is 85008158231. The reversal of 85008158178 is 87185180058.

It is a self number, because there is not a number n which added to its sum of digits gives 85008158178.

It is not an unprimeable number, because it can be changed into a prime (85008158177) 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 7 ways as a sum of consecutive naturals, for example, 54075651 + ... + 54077222.

It is an arithmetic number, because the mean of its divisors is an integer number (10707134526).

Almost surely, 285008158178 is an apocalyptic number.

85008158178 is an abundant number, since it is smaller than the sum of its proper divisors (86305994238).

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

85008158178 is a wasteful number, since it uses less digits than its factorization.

85008158178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108153009.

The product of its (nonzero) digits is 716800, while the sum is 51.

The spelling of 85008158178 in words is "eighty-five billion, eight million, one hundred fifty-eight thousand, one hundred seventy-eight".

Divisors: 1 2 3 6 131 262 393 786 108152873 216305746 324458619 648917238 14168026363 28336052726 42504079089 85008158178