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12544041 = 34181347
BaseRepresentation
bin101111110110…
…100000101001
3212121022012010
4233312200221
511202402131
61124510133
7211423356
oct57664051
925538163
1012544041
117098584
12424b349
1327a2813
14194762d
15117bb46
hexbf6829

12544041 has 4 divisors (see below), whose sum is σ = 16725392. Its totient is φ = 8362692.

The previous prime is 12544033. The next prime is 12544097. The reversal of 12544041 is 14044521.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 14044521 = 34681507.

It is not a de Polignac number, because 12544041 - 23 = 12544033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12543999 and 12544017.

It is not an unprimeable number, because it can be changed into a prime (12544001) 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, 2090671 + ... + 2090676.

It is an arithmetic number, because the mean of its divisors is an integer number (4181348).

Almost surely, 212544041 is an apocalyptic number.

It is an amenable number.

12544041 is a deficient number, since it is larger than the sum of its proper divisors (4181351).

12544041 is an equidigital number, since it uses as much as digits as its factorization.

12544041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181350.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 12544041 is about 3541.7567674814. The cubic root of 12544041 is about 232.3516824888.

Adding to 12544041 its reverse (14044521), we get a palindrome (26588562).

The spelling of 12544041 in words is "twelve million, five hundred forty-four thousand, forty-one".

Divisors: 1 3 4181347 12544041