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392349 = 3130783
BaseRepresentation
bin1011111110010011101
3201221012110
41133302131
5100023344
612224233
73222606
oct1376235
9657173
10392349
11248861
1216b079
13109779
14a2dad
157b3b9
hex5fc9d

392349 has 4 divisors (see below), whose sum is σ = 523136. Its totient is φ = 261564.

The previous prime is 392347. The next prime is 392351. The reversal of 392349 is 943293.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (392347) and next prime (392351).

It is not a de Polignac number, because 392349 - 21 = 392347 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65389 + ... + 65394.

It is an arithmetic number, because the mean of its divisors is an integer number (130784).

2392349 is an apocalyptic number.

It is an amenable number.

392349 is a deficient number, since it is larger than the sum of its proper divisors (130787).

392349 is a wasteful number, since it uses less digits than its factorization.

392349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130786.

The product of its digits is 5832, while the sum is 30.

The square root of 392349 is about 626.3776815947. The cubic root of 392349 is about 73.2078271065.

It can be divided in two parts, 392 and 349, that added together give a triangular number (741 = T38).

The spelling of 392349 in words is "three hundred ninety-two thousand, three hundred forty-nine".

Divisors: 1 3 130783 392349