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3020349 = 31006783
BaseRepresentation
bin1011100001011000111101
312200110010210
423201120331
51233122344
6144423033
734446453
oct13413075
95613123
103020349
111783262
121017a79
138199b7
145889d3
153e9db9
hex2e163d

3020349 has 4 divisors (see below), whose sum is σ = 4027136. Its totient is φ = 2013564.

The previous prime is 3020333. The next prime is 3020351. The reversal of 3020349 is 9430203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9430203 = 33143401.

It is not a de Polignac number, because 3020349 - 24 = 3020333 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503389 + ... + 503394.

It is an arithmetic number, because the mean of its divisors is an integer number (1006784).

Almost surely, 23020349 is an apocalyptic number.

It is an amenable number.

3020349 is a deficient number, since it is larger than the sum of its proper divisors (1006787).

3020349 is a wasteful number, since it uses less digits than its factorization.

3020349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006786.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3020349 is about 1737.9151302638. The cubic root of 3020349 is about 144.5503151290.

The spelling of 3020349 in words is "three million, twenty thousand, three hundred forty-nine".

Divisors: 1 3 1006783 3020349