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349288471 = 7411217033
BaseRepresentation
bin10100110100011…
…011100000010111
3220100020200201001
4110310123200113
51203404212341
654354244131
711440621510
oct2464334027
9810220631
10349288471
1116a189664
1298b86647
135749738c
1434563a07
15209e7d31
hex14d1b817

349288471 has 8 divisors (see below), whose sum is σ = 408923424. Its totient is φ = 292087680.

The previous prime is 349288469. The next prime is 349288483. The reversal of 349288471 is 174882943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 349288471 - 21 = 349288469 is a prime.

It is a super-3 number, since 3×3492884713 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349288411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608230 + ... + 608803.

It is an arithmetic number, because the mean of its divisors is an integer number (51115428).

Almost surely, 2349288471 is an apocalyptic number.

349288471 is a deficient number, since it is larger than the sum of its proper divisors (59634953).

349288471 is a wasteful number, since it uses less digits than its factorization.

349288471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217081.

The product of its digits is 387072, while the sum is 46.

The square root of 349288471 is about 18689.2608468072. The cubic root of 349288471 is about 704.2519913755.

The spelling of 349288471 in words is "three hundred forty-nine million, two hundred eighty-eight thousand, four hundred seventy-one".

Divisors: 1 7 41 287 1217033 8519231 49898353 349288471