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12430442 = 223231379
BaseRepresentation
bin101111011010…
…110001101010
3212101112100202
4233122301222
511140233232
61122232202
7210441233
oct57326152
925345322
1012430442
1170201a2
1241b5662
132762bbb
14191808a
151158162
hexbdac6a

12430442 has 24 divisors (see below), whose sum is σ = 20173440. Its totient is φ = 5738040.

The previous prime is 12430433. The next prime is 12430447. The reversal of 12430442 is 24403421.

It is not an unprimeable number, because it can be changed into a prime (12430447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32609 + ... + 32987.

It is an arithmetic number, because the mean of its divisors is an integer number (840560).

Almost surely, 212430442 is an apocalyptic number.

12430442 is a deficient number, since it is larger than the sum of its proper divisors (7742998).

12430442 is a wasteful number, since it uses less digits than its factorization.

12430442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 12430442 is about 3525.6831962047. The cubic root of 12430442 is about 231.6481612003.

Adding to 12430442 its reverse (24403421), we get a palindrome (36833863).

The spelling of 12430442 in words is "twelve million, four hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 23 31 46 62 379 529 713 758 1058 1426 8717 11749 16399 17434 23498 32798 200491 270227 400982 540454 6215221 12430442