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348641 = 443787
BaseRepresentation
bin1010101000111100001
3122201020122
41111013201
542124031
611250025
72651306
oct1250741
9581218
10348641
11218a37
12149915
13c28c7
14910ad
156d47b
hex551e1

348641 has 4 divisors (see below), whose sum is σ = 349872. Its totient is φ = 347412.

The previous prime is 348637. The next prime is 348643. The reversal of 348641 is 146843.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 348641 - 22 = 348637 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 348641.

It is not an unprimeable number, because it can be changed into a prime (348643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50 + ... + 836.

It is an arithmetic number, because the mean of its divisors is an integer number (87468).

2348641 is an apocalyptic number.

It is an amenable number.

348641 is a deficient number, since it is larger than the sum of its proper divisors (1231).

348641 is an equidigital number, since it uses as much as digits as its factorization.

348641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230.

The product of its digits is 2304, while the sum is 26.

The square root of 348641 is about 590.4582965799. The cubic root of 348641 is about 70.3816568300.

It can be divided in two parts, 348 and 641, that added together give a palindrome (989).

The spelling of 348641 in words is "three hundred forty-eight thousand, six hundred forty-one".

Divisors: 1 443 787 348641