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348930009 = 32106136541
BaseRepresentation
bin10100110011000…
…011111111011001
3220022120110222200
4110303003333121
51203311230014
654342440413
711434566441
oct2463037731
9808513880
10348930009
11169a6430a
1298a33109
13573a017c
14344ad121
1520976a09
hex14cc3fd9

348930009 has 12 divisors (see below), whose sum is σ = 504498852. Its totient is φ = 232394400.

The previous prime is 348930007. The next prime is 348930031. The reversal of 348930009 is 900039843.

348930009 is a `hidden beast` number, since 348 + 9 + 300 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 290361600 + 58568409 = 17040^2 + 7653^2 .

It is not a de Polignac number, because 348930009 - 21 = 348930007 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (348930007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8722 + ... + 27819.

It is an arithmetic number, because the mean of its divisors is an integer number (42041571).

Almost surely, 2348930009 is an apocalyptic number.

It is an amenable number.

348930009 is a deficient number, since it is larger than the sum of its proper divisors (155568843).

348930009 is a wasteful number, since it uses less digits than its factorization.

348930009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37608 (or 37605 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 348930009 is about 18679.6683321734. The cubic root of 348930009 is about 704.0109928821.

The spelling of 348930009 in words is "three hundred forty-eight million, nine hundred thirty thousand, nine".

Divisors: 1 3 9 1061 3183 9549 36541 109623 328869 38770001 116310003 348930009