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349149687 = 3116383229
BaseRepresentation
bin10100110011111…
…001100111110111
3220022222122022220
4110303321213313
51203340242222
654351253423
711436503055
oct2463714767
9808878286
10349149687
1116a0a4367
1298b1a273
1357449163
14345291d5
15209bbb5c
hex14cf99f7

349149687 has 4 divisors (see below), whose sum is σ = 465532920. Its totient is φ = 232766456.

The previous prime is 349149677. The next prime is 349149701. The reversal of 349149687 is 786941943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 349149687 - 26 = 349149623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349149617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58191612 + ... + 58191617.

It is an arithmetic number, because the mean of its divisors is an integer number (116383230).

Almost surely, 2349149687 is an apocalyptic number.

349149687 is a deficient number, since it is larger than the sum of its proper divisors (116383233).

349149687 is a wasteful number, since it uses less digits than its factorization.

349149687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116383232.

The product of its digits is 1306368, while the sum is 51.

The square root of 349149687 is about 18685.5475434893. The cubic root of 349149687 is about 704.1587047235.

The spelling of 349149687 in words is "three hundred forty-nine million, one hundred forty-nine thousand, six hundred eighty-seven".

Divisors: 1 3 116383229 349149687