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3072609 = 321971733
BaseRepresentation
bin1011101110001001100001
312210002211100
423232021201
51241310414
6145505013
735055021
oct13561141
95702740
103072609
111809551
121042169
13837717
1459da81
1540a609
hex2ee261

3072609 has 12 divisors (see below), whose sum is σ = 4463316. Its totient is φ = 2036832.

The previous prime is 3072607. The next prime is 3072611. The reversal of 3072609 is 9062703.

3072609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3072607) and next prime (3072611).

It can be written as a sum of positive squares in 2 ways, for example, as 2387025 + 685584 = 1545^2 + 828^2 .

It is not a de Polignac number, because 3072609 - 21 = 3072607 is a prime.

3072609 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072607) 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 11 ways as a sum of consecutive naturals, for example, 907 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (371943).

Almost surely, 23072609 is an apocalyptic number.

It is an amenable number.

3072609 is a deficient number, since it is larger than the sum of its proper divisors (1390707).

3072609 is a wasteful number, since it uses less digits than its factorization.

3072609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936 (or 1933 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 3072609 is about 1752.8859061559. The cubic root of 3072609 is about 145.3792529242.

It can be divided in two parts, 307 and 2609, that added together give a square (2916 = 542).

The spelling of 3072609 in words is "three million, seventy-two thousand, six hundred nine".

Divisors: 1 3 9 197 591 1733 1773 5199 15597 341401 1024203 3072609