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2205085 = 53131409
BaseRepresentation
bin1000011010010110011101
311011000210211
420122112131
51031030320
6115132421
724512551
oct10322635
94130724
102205085
111276793
128a4111
135c28ac
14415861
152d855a
hex21a59d

2205085 has 8 divisors (see below), whose sum is σ = 2656440. Its totient is φ = 1757184.

The previous prime is 2205067. The next prime is 2205107. The reversal of 2205085 is 5805022.

2205085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 284089 + 1920996 = 533^2 + 1386^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2205085 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861 + ... + 2269.

It is an arithmetic number, because the mean of its divisors is an integer number (332055).

22205085 is an apocalyptic number.

It is an amenable number.

2205085 is a deficient number, since it is larger than the sum of its proper divisors (451355).

2205085 is a wasteful number, since it uses less digits than its factorization.

2205085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2205085 is about 1484.9528612047. The cubic root of 2205085 is about 130.1592722402.

The spelling of 2205085 in words is "two million, two hundred five thousand, eighty-five".

Divisors: 1 5 313 1409 1565 7045 441017 2205085