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12209041 = 13939157
BaseRepresentation
bin101110100100…
…101110010001
3211222021122201
4232210232101
511111142131
61113403201
7205526605
oct56445621
924867581
1012209041
116989919
124109501
1326b61b0
14189b505
151112761
hexba4b91

12209041 has 4 divisors (see below), whose sum is σ = 13148212. Its totient is φ = 11269872.

The previous prime is 12209023. The next prime is 12209063. The reversal of 12209041 is 14090221.

12209041 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.

It can be written as a sum of positive squares in 2 ways, for example, as 8288641 + 3920400 = 2879^2 + 1980^2 .

It is a cyclic number.

It is not a de Polignac number, because 12209041 - 211 = 12206993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12209011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469566 + ... + 469591.

It is an arithmetic number, because the mean of its divisors is an integer number (3287053).

Almost surely, 212209041 is an apocalyptic number.

It is an amenable number.

12209041 is a deficient number, since it is larger than the sum of its proper divisors (939171).

12209041 is an equidigital number, since it uses as much as digits as its factorization.

12209041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939170.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12209041 is about 3494.1438150139. The cubic root of 12209041 is about 230.2646041014.

Adding to 12209041 its reverse (14090221), we get a palindrome (26299262).

The spelling of 12209041 in words is "twelve million, two hundred nine thousand, forty-one".

Divisors: 1 13 939157 12209041