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12443061 = 34147687
BaseRepresentation
bin101111011101…
…110110110101
3212102011200010
4233131312311
511141134221
61122410433
7210523101
oct57356665
925364603
1012443061
117029724
124200a19
132768877
14191c901
15115bc76
hexbdddb5

12443061 has 4 divisors (see below), whose sum is σ = 16590752. Its totient is φ = 8295372.

The previous prime is 12443047. The next prime is 12443083. The reversal of 12443061 is 16034421.

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 not a de Polignac number, because 12443061 - 25 = 12443029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443261) 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 3 ways as a sum of consecutive naturals, for example, 2073841 + ... + 2073846.

It is an arithmetic number, because the mean of its divisors is an integer number (4147688).

Almost surely, 212443061 is an apocalyptic number.

It is an amenable number.

12443061 is a deficient number, since it is larger than the sum of its proper divisors (4147691).

12443061 is an equidigital number, since it uses as much as digits as its factorization.

12443061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147690.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 12443061 is about 3527.4723244839. The cubic root of 12443061 is about 231.7265220377.

Adding to 12443061 its reverse (16034421), we get a palindrome (28477482).

The spelling of 12443061 in words is "twelve million, four hundred forty-three thousand, sixty-one".

Divisors: 1 3 4147687 12443061