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85387180 = 22512733617
BaseRepresentation
bin1010001011011…
…10011110101100
312221200010012011
411011232132230
5133324342210
612250051004
72054531134
oct505563654
9187603164
1085387180
114422071a
1224719a64
13148c8478
14b4a9ac4
157769d8a
hex516e7ac

85387180 has 24 divisors (see below), whose sum is σ = 180730368. Its totient is φ = 33884928.

The previous prime is 85387153. The next prime is 85387193. The reversal of 85387180 is 8178358.

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, 14269 + ... + 19348.

It is an arithmetic number, because the mean of its divisors is an integer number (7530432).

Almost surely, 285387180 is an apocalyptic number.

It is an amenable number.

85387180 is an abundant number, since it is smaller than the sum of its proper divisors (95343188).

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

85387180 is a wasteful number, since it uses less digits than its factorization.

85387180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33753 (or 33751 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 85387180 is about 9240.5183837272. The cubic root of 85387180 is about 440.3495500564.

The spelling of 85387180 in words is "eighty-five million, three hundred eighty-seven thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 127 254 508 635 1270 2540 33617 67234 134468 168085 336170 672340 4269359 8538718 17077436 21346795 42693590 85387180