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12004061 = 109110129
BaseRepresentation
bin101101110010…
…101011011101
3211120212110212
4231302223131
511033112221
61105142205
7204014156
oct55625335
924525425
1012004061
116859913
12402a965
132643ac4
14184692d
1510c1b5b
hexb72add

12004061 has 4 divisors (see below), whose sum is σ = 12114300. Its totient is φ = 11893824.

The previous prime is 12004051. The next prime is 12004087. The reversal of 12004061 is 16040021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16040021 = 40034007.

It can be written as a sum of positive squares in 2 ways, for example, as 6220036 + 5784025 = 2494^2 + 2405^2 .

It is a cyclic number.

It is not a de Polignac number, because 12004061 - 26 = 12003997 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 (12004051) 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, 54956 + ... + 55173.

It is an arithmetic number, because the mean of its divisors is an integer number (3028575).

Almost surely, 212004061 is an apocalyptic number.

It is an amenable number.

12004061 is a deficient number, since it is larger than the sum of its proper divisors (110239).

12004061 is a wasteful number, since it uses less digits than its factorization.

12004061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110238.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12004061 is about 3464.6877204158. The cubic root of 12004061 is about 228.9686716231.

Adding to 12004061 its reverse (16040021), we get a palindrome (28044082).

The spelling of 12004061 in words is "twelve million, four thousand, sixty-one".

Divisors: 1 109 110129 12004061