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12404424 = 2331730403
BaseRepresentation
bin101111010100…
…011011001000
3212100012200010
4233110123020
511133420144
61121511520
7210302334
oct57243310
925305603
1012404424
11700269a
1241a25a0
1327540c6
14190c7c4
1511505b9
hexbd46c8

12404424 has 32 divisors (see below), whose sum is σ = 32836320. Its totient is φ = 3891456.

The previous prime is 12404423. The next prime is 12404437. The reversal of 12404424 is 42440421.

Adding to 12404424 its reverse (42440421), we get a palindrome (54844845).

12404424 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12404424.

It is not an unprimeable number, because it can be changed into a prime (12404423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14794 + ... + 15609.

It is an arithmetic number, because the mean of its divisors is an integer number (1026135).

Almost surely, 212404424 is an apocalyptic number.

It is an amenable number.

12404424 is an abundant number, since it is smaller than the sum of its proper divisors (20431896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12404424 is a wasteful number, since it uses less digits than its factorization.

12404424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30429 (or 30425 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 12404424 is about 3521.9914821021. The cubic root of 12404424 is about 231.4864283678.

The spelling of 12404424 in words is "twelve million, four hundred four thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 30403 60806 91209 121612 182418 243224 364836 516851 729672 1033702 1550553 2067404 3101106 4134808 6202212 12404424