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12004141 = 17236967
BaseRepresentation
bin101101110010…
…101100101101
3211120212120211
4231302230231
511033113031
61105142421
7204014332
oct55625455
924525524
1012004141
116859986
12402aa11
132643b56
141846989
1510c1bb1
hexb72b2d

12004141 has 4 divisors (see below), whose sum is σ = 12012832. Its totient is φ = 11995452.

The previous prime is 12004117. The next prime is 12004163. The reversal of 12004141 is 14140021.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14140021 = 72020003.

It is a cyclic number.

It is not a de Polignac number, because 12004141 - 211 = 12002093 is a prime.

It is a super-2 number, since 2×120041412 = 288198802295762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004171) 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, 1761 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (3003208).

Almost surely, 212004141 is an apocalyptic number.

It is an amenable number.

12004141 is a deficient number, since it is larger than the sum of its proper divisors (8691).

12004141 is an equidigital number, since it uses as much as digits as its factorization.

12004141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8690.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12004141 is about 3464.6992654486. The cubic root of 12004141 is about 228.9691802691.

Adding to 12004141 its reverse (14140021), we get a palindrome (26144162).

The spelling of 12004141 in words is "twelve million, four thousand, one hundred forty-one".

Divisors: 1 1723 6967 12004141