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208180085 = 572757271
BaseRepresentation
bin11000110100010…
…01001101110101
3112111201122101112
430122021031311
5411243230320
632354004405
75105334011
oct1432111565
9474648345
10208180085
11a756a863
1259876705
133418c6a9
141d911541
1513422ec5
hexc689375

208180085 has 8 divisors (see below), whose sum is σ = 250164096. Its totient is φ = 166312080.

The previous prime is 208180073. The next prime is 208180099. The reversal of 208180085 is 580081802.

208180085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 208180085 - 216 = 208114549 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 25001 + ... + 32270.

It is an arithmetic number, because the mean of its divisors is an integer number (31270512).

Almost surely, 2208180085 is an apocalyptic number.

It is an amenable number.

208180085 is a deficient number, since it is larger than the sum of its proper divisors (41984011).

208180085 is an equidigital number, since it uses as much as digits as its factorization.

208180085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58003.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 208180085 is about 14428.4470751360. The cubic root of 208180085 is about 592.6701583005.

The spelling of 208180085 in words is "two hundred eight million, one hundred eighty thousand, eighty-five".

Divisors: 1 5 727 3635 57271 286355 41636017 208180085