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12423412 = 225358601
BaseRepresentation
bin101111011001…
…000011110100
3212101011201101
4233121003310
511140022122
61122135444
7210411601
oct57310364
925334641
1012423412
117015991
1241b1584
13275c941
1419156a8
151156027
hexbd90f4

12423412 has 12 divisors (see below), whose sum is σ = 22151556. Its totient is φ = 6094400.

The previous prime is 12423409. The next prime is 12423457. The reversal of 12423412 is 21432421.

It can be written as a sum of positive squares in 2 ways, for example, as 7160976 + 5262436 = 2676^2 + 2294^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12423412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29089 + ... + 29512.

It is an arithmetic number, because the mean of its divisors is an integer number (1845963).

Almost surely, 212423412 is an apocalyptic number.

It is an amenable number.

12423412 is a deficient number, since it is larger than the sum of its proper divisors (9728144).

12423412 is a wasteful number, since it uses less digits than its factorization.

12423412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58658 (or 58656 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 12423412 is about 3524.6860853131. The cubic root of 12423412 is about 231.6044836528.

Adding to 12423412 its reverse (21432421), we get a palindrome (33855833).

Subtracting 12423412 from its reverse (21432421), we obtain a palindrome (9009009).

The spelling of 12423412 in words is "twelve million, four hundred twenty-three thousand, four hundred twelve".

Divisors: 1 2 4 53 106 212 58601 117202 234404 3105853 6211706 12423412