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12405044 = 2222313907
BaseRepresentation
bin101111010100…
…100100110100
3212100020112002
4233110210310
511133430134
61121514432
7210304211
oct57244464
925306462
1012405044
117003103
1241a2a18
132754482
14190cb08
15115087e
hexbd4934

12405044 has 12 divisors (see below), whose sum is σ = 21807744. Its totient is φ = 6174264.

The previous prime is 12405031. The next prime is 12405067. The reversal of 12405044 is 44050421.

12405044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6062 + ... + 7845.

It is an arithmetic number, because the mean of its divisors is an integer number (1817312).

Almost surely, 212405044 is an apocalyptic number.

It is an amenable number.

12405044 is a deficient number, since it is larger than the sum of its proper divisors (9402700).

12405044 is a wasteful number, since it uses less digits than its factorization.

12405044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14134 (or 14132 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 12405044 is about 3522.0794993867. The cubic root of 12405044 is about 231.4902850347.

Adding to 12405044 its reverse (44050421), we get a palindrome (56455465).

The spelling of 12405044 in words is "twelve million, four hundred five thousand, forty-four".

Divisors: 1 2 4 223 446 892 13907 27814 55628 3101261 6202522 12405044