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347130161 = 7240917321
BaseRepresentation
bin10100101100001…
…100100100110001
3220012012001001122
4110230030210301
51202331131121
654240112025
711413362200
oct2454144461
9805161048
10347130161
11168a45034
1298305615
1356bbcb81
1434161237
152071d5ab
hex14b0c931

347130161 has 12 divisors (see below), whose sum is σ = 404815140. Its totient is φ = 296795520.

The previous prime is 347130151. The next prime is 347130163. The reversal of 347130161 is 161031743.

It can be written as a sum of positive squares in 2 ways, for example, as 217739536 + 129390625 = 14756^2 + 11375^2 .

It is not a de Polignac number, because 347130161 - 26 = 347130097 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 347130161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347130163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11381 + ... + 28701.

It is an arithmetic number, because the mean of its divisors is an integer number (33734595).

Almost surely, 2347130161 is an apocalyptic number.

It is an amenable number.

347130161 is a deficient number, since it is larger than the sum of its proper divisors (57684979).

347130161 is a wasteful number, since it uses less digits than its factorization.

347130161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17744 (or 17737 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 347130161 is about 18631.4293869257. The cubic root of 347130161 is about 702.7984309738.

The spelling of 347130161 in words is "three hundred forty-seven million, one hundred thirty thousand, one hundred sixty-one".

Divisors: 1 7 49 409 2863 17321 20041 121247 848729 7084289 49590023 347130161