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348402197 = 11213221489
BaseRepresentation
bin10100110001000…
…011001000010101
3220021120122222002
4110301003020111
51203142332242
654323245045
711430240563
oct2461031025
9807518862
10348402197
11169733800
1298819785
1357246b60
14343b2a33
15208c0432
hex14c43215

348402197 has 12 divisors (see below), whose sum is σ = 412414380. Its totient is φ = 292364160.

The previous prime is 348402191. The next prime is 348402239. The reversal of 348402197 is 791204843.

It can be written as a sum of positive squares in 2 ways, for example, as 117635716 + 230766481 = 10846^2 + 15191^2 .

It is not a de Polignac number, because 348402197 - 24 = 348402181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 348402197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348402191) 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, 109172 + ... + 112317.

It is an arithmetic number, because the mean of its divisors is an integer number (34367865).

Almost surely, 2348402197 is an apocalyptic number.

It is an amenable number.

348402197 is a deficient number, since it is larger than the sum of its proper divisors (64012183).

348402197 is a wasteful number, since it uses less digits than its factorization.

348402197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221524 (or 221513 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 348402197 is about 18665.5350043871. The cubic root of 348402197 is about 703.6558376372.

The spelling of 348402197 in words is "three hundred forty-eight million, four hundred two thousand, one hundred ninety-seven".

Divisors: 1 11 13 121 143 1573 221489 2436379 2879357 26800169 31672927 348402197