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3090785 = 54115077
BaseRepresentation
bin1011110010100101100001
312211000202112
423302211201
51242401120
6150125105
735162015
oct13624541
95730675
103090785
111821175
121050795
13842a89
145a6545
15410bc5
hex2f2961

3090785 has 8 divisors (see below), whose sum is σ = 3799656. Its totient is φ = 2412160.

The previous prime is 3090781. The next prime is 3090817. The reversal of 3090785 is 5870903.

3090785 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 214369 + 2876416 = 463^2 + 1696^2 .

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

It is not a de Polignac number, because 3090785 - 22 = 3090781 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3090781) 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, 7334 + ... + 7743.

It is an arithmetic number, because the mean of its divisors is an integer number (474957).

Almost surely, 23090785 is an apocalyptic number.

It is an amenable number.

3090785 is a deficient number, since it is larger than the sum of its proper divisors (708871).

3090785 is a wasteful number, since it uses less digits than its factorization.

3090785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15123.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 3090785 is about 1758.0628543940. The cubic root of 3090785 is about 145.6653528872.

The spelling of 3090785 in words is "three million, ninety thousand, seven hundred eighty-five".

Divisors: 1 5 41 205 15077 75385 618157 3090785