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561344214 = 23227412147
BaseRepresentation
bin100001011101010…
…110111011010110
31110010021020111110
4201131112323112
52122201003324
6131411315450
716624230024
oct4135267326
91403236443
10561344214
11268956242
12137babb86
138c3b2b52
14547a3714
1534434329
hex21756ed6

561344214 has 16 divisors (see below), whose sum is σ = 1127636928. Its totient is φ = 186289992.

The previous prime is 561344209. The next prime is 561344219. The reversal of 561344214 is 412443165.

It is an interprime number because it is at equal distance from previous prime (561344209) and next prime (561344219).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561344219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204712 + ... + 207435.

It is an arithmetic number, because the mean of its divisors is an integer number (70477308).

Almost surely, 2561344214 is an apocalyptic number.

561344214 is an abundant number, since it is smaller than the sum of its proper divisors (566292714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561344214 is a wasteful number, since it uses less digits than its factorization.

561344214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412379.

The product of its digits is 11520, while the sum is 30.

The square root of 561344214 is about 23692.7038136216. The cubic root of 561344214 is about 824.9160436144.

Adding to 561344214 its reverse (412443165), we get a palindrome (973787379).

The spelling of 561344214 in words is "five hundred sixty-one million, three hundred forty-four thousand, two hundred fourteen".

Divisors: 1 2 3 6 227 454 681 1362 412147 824294 1236441 2472882 93557369 187114738 280672107 561344214