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3090305 = 53731657
BaseRepresentation
bin1011110010011110000001
312211000002202
423302132001
51242342210
6150122545
735160431
oct13623601
95730082
103090305
111820879
121050455
138427aa
145a62c1
154109a5
hex2f2781

3090305 has 8 divisors (see below), whose sum is σ = 3720552. Its totient is φ = 2464128.

The previous prime is 3090301. The next prime is 3090313. The reversal of 3090305 is 5030903.

3090305 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 190096 + 2900209 = 436^2 + 1703^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3090305 - 22 = 3090301 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3090301) by changing a digit.

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, 1037 + ... + 2693.

It is an arithmetic number, because the mean of its divisors is an integer number (465069).

Almost surely, 23090305 is an apocalyptic number.

It is an amenable number.

3090305 is a deficient number, since it is larger than the sum of its proper divisors (630247).

3090305 is a wasteful number, since it uses less digits than its factorization.

3090305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 3090305 is about 1757.9263352029. The cubic root of 3090305 is about 145.6578118699.

The spelling of 3090305 in words is "three million, ninety thousand, three hundred five".

Divisors: 1 5 373 1657 1865 8285 618061 3090305