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345344345 = 5397173977
BaseRepresentation
bin10100100101011…
…000100101011001
3220001211022101022
4110211120211121
51201402004340
654133532225
711362243553
oct2445304531
9801738338
10345344345
11167a35355
12977a4075
1356716088
1433c184d3
15204b93b5
hex14958959

345344345 has 8 divisors (see below), whose sum is σ = 415459464. Its totient is φ = 275577984.

The previous prime is 345344339. The next prime is 345344387. The reversal of 345344345 is 543443543.

It can be written as a sum of positive squares in 4 ways, for example, as 74149321 + 271195024 = 8611^2 + 16468^2 .

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 345344345 - 26 = 345344281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 85004 + ... + 88973.

It is an arithmetic number, because the mean of its divisors is an integer number (51932433).

Almost surely, 2345344345 is an apocalyptic number.

It is an amenable number.

345344345 is a deficient number, since it is larger than the sum of its proper divisors (70115119).

345344345 is a wasteful number, since it uses less digits than its factorization.

345344345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174379.

The product of its digits is 172800, while the sum is 35.

The square root of 345344345 is about 18583.4427649992. The cubic root of 345344345 is about 701.5911728749.

Adding to 345344345 its reverse (543443543), we get a palindrome (888787888).

The spelling of 345344345 in words is "three hundred forty-five million, three hundred forty-four thousand, three hundred forty-five".

Divisors: 1 5 397 1985 173977 869885 69068869 345344345