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12404444 = 2213238547
BaseRepresentation
bin101111010100…
…011011011100
3212100012200212
4233110123130
511133420234
61121511552
7210302363
oct57243334
925305625
1012404444
117002708
1241a25b8
132754110
14190c7da
1511505ce
hexbd46dc

12404444 has 12 divisors (see below), whose sum is σ = 23377704. Its totient is φ = 5725104.

The previous prime is 12404437. The next prime is 12404449. The reversal of 12404444 is 44440421.

12404444 is a modest number, since divided by 4444 gives 1240 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404449) 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, 119222 + ... + 119325.

It is an arithmetic number, because the mean of its divisors is an integer number (1948142).

Almost surely, 212404444 is an apocalyptic number.

It is an amenable number.

12404444 is a deficient number, since it is larger than the sum of its proper divisors (10973260).

12404444 is a wasteful number, since it uses less digits than its factorization.

12404444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238564 (or 238562 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 12404444 is about 3521.9943214037. The cubic root of 12404444 is about 231.4865527784.

Adding to 12404444 its reverse (44440421), we get a palindrome (56844865).

The spelling of 12404444 in words is "twelve million, four hundred four thousand, four hundred forty-four".

Divisors: 1 2 4 13 26 52 238547 477094 954188 3101111 6202222 12404444