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85190514785 = 51271634571801
BaseRepresentation
bin100111101010111000…
…0000001100001100001
322010220001222112201022
41033111300001201201
52343432232433120
6103045212215225
76104046266525
oct1172560014141
9263801875638
1085190514785
1133146908722
121461616a515
1380585a953c
1441a226dd85
152339009025
hex13d5c01861

85190514785 has 32 divisors (see below), whose sum is σ = 103950200832. Its totient is φ = 67016678400.

The previous prime is 85190514727. The next prime is 85190514797. The reversal of 85190514785 is 58741509158.

It is a de Polignac number, because none of the positive numbers 2k-85190514785 is a prime.

It is a Duffinian 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, 47300885 + ... + 47302685.

It is an arithmetic number, because the mean of its divisors is an integer number (3248443776).

Almost surely, 285190514785 is an apocalyptic number.

It is an amenable number.

85190514785 is a deficient number, since it is larger than the sum of its proper divisors (18759686047).

85190514785 is a wasteful number, since it uses less digits than its factorization.

85190514785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553.

The product of its (nonzero) digits is 2016000, while the sum is 53.

The spelling of 85190514785 in words is "eighty-five billion, one hundred ninety million, five hundred fourteen thousand, seven hundred eighty-five".

Divisors: 1 5 127 163 457 635 815 1801 2285 9005 20701 58039 74491 103505 228727 290195 293563 372455 823057 1143635 1467815 4115285 9460357 37282501 47301785 104528239 134158291 186412505 522641195 670791455 17038102957 85190514785