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344111213 = 2931174441
BaseRepresentation
bin10100100000101…
…011100001101101
3212222111122211202
4110200223201231
51201043024323
654051255245
711345616455
oct2440534155
9788448752
10344111213
11167272936
12972aa525
13563a3a04
14339b6d65
1520323d28
hex1482b86d

344111213 has 4 divisors (see below), whose sum is σ = 345285948. Its totient is φ = 342936480.

The previous prime is 344111203. The next prime is 344111221. The reversal of 344111213 is 312111443.

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

It can be written as a sum of positive squares in 2 ways, for example, as 282676969 + 61434244 = 16813^2 + 7838^2 .

It is a cyclic number.

It is not a de Polignac number, because 344111213 - 24 = 344111197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344111203) 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, 586928 + ... + 587513.

It is an arithmetic number, because the mean of its divisors is an integer number (86321487).

Almost surely, 2344111213 is an apocalyptic number.

It is an amenable number.

344111213 is a deficient number, since it is larger than the sum of its proper divisors (1174735).

344111213 is a wasteful number, since it uses less digits than its factorization.

344111213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174734.

The product of its digits is 288, while the sum is 20.

The square root of 344111213 is about 18550.2348502654. The cubic root of 344111213 is about 700.7551123542.

Adding to 344111213 its reverse (312111443), we get a palindrome (656222656).

The spelling of 344111213 in words is "three hundred forty-four million, one hundred eleven thousand, two hundred thirteen".

Divisors: 1 293 1174441 344111213