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348801685 = 52575212
BaseRepresentation
bin10100110010100…
…100101010010101
3220022022221221221
4110302210222111
51203243123220
654340010341
711433523351
oct2462445225
9808287857
10348801685
11169986961
12989909b1
135735693b
1434478461
152094d9aa
hex14ca4a95

348801685 has 12 divisors (see below), whose sum is σ = 420998724. Its totient is φ = 277422080.

The previous prime is 348801683. The next prime is 348801707. The reversal of 348801685 is 586108843.

It can be written as a sum of positive squares in 6 ways, for example, as 531441 + 348270244 = 729^2 + 18662^2 .

It is not a de Polignac number, because 348801685 - 21 = 348801683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348801683) 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 11 ways as a sum of consecutive naturals, for example, 669225 + ... + 669745.

It is an arithmetic number, because the mean of its divisors is an integer number (35083227).

Almost surely, 2348801685 is an apocalyptic number.

It is an amenable number.

348801685 is a deficient number, since it is larger than the sum of its proper divisors (72197039).

348801685 is an frugal number, since it uses more digits than its factorization.

348801685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 348801685 is about 18676.2331587502. The cubic root of 348801685 is about 703.9246789305.

The spelling of 348801685 in words is "three hundred forty-eight million, eight hundred one thousand, six hundred eighty-five".

Divisors: 1 5 257 521 1285 2605 133897 271441 669485 1357205 69760337 348801685