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43223413 = 137331481
BaseRepresentation
bin1010010011100…
…0100101110101
310000022222101011
42210320211311
542031122123
64142232221
71033251532
oct244704565
9100288334
1043223413
1122442432
1212585671
138c54aac
145a51d89
153bdbe0d
hex2938975

43223413 has 4 divisors (see below), whose sum is σ = 43256268. Its totient is φ = 43190560.

The previous prime is 43223407. The next prime is 43223429. The reversal of 43223413 is 31432234.

It is a happy number.

43223413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31432234 = 215716117.

It can be written as a sum of positive squares in 2 ways, for example, as 24621444 + 18601969 = 4962^2 + 4313^2 .

It is a cyclic number.

It is not a de Polignac number, because 43223413 - 25 = 43223381 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 (43223443) 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, 14368 + ... + 17113.

It is an arithmetic number, because the mean of its divisors is an integer number (10814067).

Almost surely, 243223413 is an apocalyptic number.

It is an amenable number.

43223413 is a deficient number, since it is larger than the sum of its proper divisors (32855).

43223413 is a wasteful number, since it uses less digits than its factorization.

43223413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32854.

The product of its digits is 1728, while the sum is 22.

The square root of 43223413 is about 6574.4515360599. The cubic root of 43223413 is about 350.9455060516.

Adding to 43223413 its reverse (31432234), we get a palindrome (74655647).

The spelling of 43223413 in words is "forty-three million, two hundred twenty-three thousand, four hundred thirteen".

Divisors: 1 1373 31481 43223413