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12443202 = 232691289
BaseRepresentation
bin101111011101…
…111001000010
3212102011212100
4233131321002
511141140302
61122411230
7210523362
oct57357102
925364770
1012443202
117029842
124200b16
132768955
14191c9a2
15115bd1c
hexbdde42

12443202 has 12 divisors (see below), whose sum is σ = 26960310. Its totient is φ = 4147728.

The previous prime is 12443191. The next prime is 12443219. The reversal of 12443202 is 20234421.

It can be written as a sum of positive squares in only one way, i.e., 9235521 + 3207681 = 3039^2 + 1791^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 691289 = 12443202 / (1 + 2 + 4 + 4 + 3 + 2 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345627 + ... + 345662.

Almost surely, 212443202 is an apocalyptic number.

12443202 is an abundant number, since it is smaller than the sum of its proper divisors (14517108).

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

12443202 is a wasteful number, since it uses less digits than its factorization.

12443202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691297 (or 691294 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 12443202 is about 3527.4923104098. The cubic root of 12443202 is about 231.7273973132.

Adding to 12443202 its reverse (20234421), we get a palindrome (32677623).

The spelling of 12443202 in words is "twelve million, four hundred forty-three thousand, two hundred two".

Divisors: 1 2 3 6 9 18 691289 1382578 2073867 4147734 6221601 12443202