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3072349 = 7262701
BaseRepresentation
bin1011101110000101011101
312210002110201
423232011131
51241303344
6145503501
735054200
oct13560535
95702421
103072349
111809335
121041b91
13837577
1459d937
1540a4d4
hex2ee15d

3072349 has 6 divisors (see below), whose sum is σ = 3574014. Its totient is φ = 2633400.

The previous prime is 3072301. The next prime is 3072353. The reversal of 3072349 is 9432703.

It can be written as a sum of positive squares in only one way, i.e., 2592100 + 480249 = 1610^2 + 693^2 .

It is not a de Polignac number, because 3072349 - 29 = 3071837 is a prime.

It is a super-3 number, since 3×30723493 = 87002733306625573647, which contains 333 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072449) 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 5 ways as a sum of consecutive naturals, for example, 31302 + ... + 31399.

It is an arithmetic number, because the mean of its divisors is an integer number (595669).

Almost surely, 23072349 is an apocalyptic number.

It is an amenable number.

3072349 is a deficient number, since it is larger than the sum of its proper divisors (501665).

3072349 is an equidigital number, since it uses as much as digits as its factorization.

3072349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62715 (or 62708 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 3072349 is about 1752.8117411747. The cubic root of 3072349 is about 145.3751522102.

The spelling of 3072349 in words is "three million, seventy-two thousand, three hundred forty-nine".

Divisors: 1 7 49 62701 438907 3072349