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349000173 = 3280947933
BaseRepresentation
bin10100110011010…
…101000111101101
3220022201001020100
4110303111013231
51203321001143
654344141313
711435311134
oct2463250755
9808631210
10349000173
1116a001aa5
1298a67839
13573c60a2
14344ca91b
152098c6d3
hex14cd51ed

349000173 has 12 divisors (see below), whose sum is σ = 504745020. Its totient is φ = 232374336.

The previous prime is 349000121. The next prime is 349000187. The reversal of 349000173 is 371000943.

349000173 is a `hidden beast` number, since 3 + 490 + 0 + 0 + 173 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 250335684 + 98664489 = 15822^2 + 9933^2 .

It is not a de Polignac number, because 349000173 - 29 = 348999661 is a prime.

It is a super-2 number, since 2×3490001732 = 243602241508059858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349000073) 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, 16686 + ... + 31247.

It is an arithmetic number, because the mean of its divisors is an integer number (42062085).

Almost surely, 2349000173 is an apocalyptic number.

It is an amenable number.

349000173 is a deficient number, since it is larger than the sum of its proper divisors (155744847).

349000173 is a wasteful number, since it uses less digits than its factorization.

349000173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48748 (or 48745 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 349000173 is about 18681.5463225077. The cubic root of 349000173 is about 704.0581780057.

The spelling of 349000173 in words is "three hundred forty-nine million, one hundred seventy-three", and thus it is an aban number.

Divisors: 1 3 9 809 2427 7281 47933 143799 431397 38777797 116333391 349000173