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3090385 = 52921313
BaseRepresentation
bin1011110010011111010001
312211000012201
423302133101
51242343020
6150123201
735160604
oct13623721
95730181
103090385
111820941
121050501
1384283c
145a633b
15410a0a
hex2f27d1

3090385 has 8 divisors (see below), whose sum is σ = 3836520. Its totient is φ = 2386944.

The previous prime is 3090383. The next prime is 3090389. The reversal of 3090385 is 5830903.

It is a happy number.

3090385 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 4 ways, for example, as 135424 + 2954961 = 368^2 + 1719^2 .

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 3090385 - 21 = 3090383 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (3090383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10512 + ... + 10801.

It is an arithmetic number, because the mean of its divisors is an integer number (479565).

Almost surely, 23090385 is an apocalyptic number.

It is an amenable number.

3090385 is a deficient number, since it is larger than the sum of its proper divisors (746135).

3090385 is a wasteful number, since it uses less digits than its factorization.

3090385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21347.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3090385 is about 1757.9490891377. The cubic root of 3090385 is about 145.6590687604.

The spelling of 3090385 in words is "three million, ninety thousand, three hundred eighty-five".

Divisors: 1 5 29 145 21313 106565 618077 3090385