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85285337860 = 22517250839229
BaseRepresentation
bin100111101101101100…
…1101111101100000100
322011010200102001112001
41033123121233230010
52344131021302420
6103102440435044
76106310260612
oct1173331575404
9264120361461
1085285337860
11331953936a8
1214641a78a84
138072129878
1441b0ab46b2
1523424d9b0a
hex13db66fb04

85285337860 has 24 divisors (see below), whose sum is σ = 189634457880. Its totient is φ = 32107421184.

The previous prime is 85285337849. The next prime is 85285337899. The reversal of 85285337860 is 6873358258.

It can be written as a sum of positive squares in 4 ways, for example, as 7247797956 + 78037539904 = 85134^2 + 279352^2 .

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125419275 + ... + 125419954.

It is an arithmetic number, because the mean of its divisors is an integer number (7901435745).

Almost surely, 285285337860 is an apocalyptic number.

It is an amenable number.

85285337860 is an abundant number, since it is smaller than the sum of its proper divisors (104349120020).

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

85285337860 is a wasteful number, since it uses less digits than its factorization.

85285337860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250839255 (or 250839253 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 85285337860 in words is "eighty-five billion, two hundred eighty-five million, three hundred thirty-seven thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 250839229 501678458 1003356916 1254196145 2508392290 4264266893 5016784580 8528533786 17057067572 21321334465 42642668930 85285337860