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12937444 = 2213248797
BaseRepresentation
bin110001010110…
…100011100100
3220100021211121
4301112203210
511302444234
61141143324
7214652332
oct61264344
926307747
1012937444
117337103
1243bab44
1328ac8c0
141a0ab52
1512084b4
hexc568e4

12937444 has 12 divisors (see below), whose sum is σ = 24382204. Its totient is φ = 5971104.

The previous prime is 12937433. The next prime is 12937469. The reversal of 12937444 is 44473921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7225344 + 5712100 = 2688^2 + 2390^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124347 + ... + 124450.

Almost surely, 212937444 is an apocalyptic number.

It is an amenable number.

12937444 is a deficient number, since it is larger than the sum of its proper divisors (11444760).

12937444 is a wasteful number, since it uses less digits than its factorization.

12937444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248814 (or 248812 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 12937444 is about 3596.8658579380. The cubic root of 12937444 is about 234.7557081106.

It can be divided in two parts, 129 and 37444, that added together give a palindrome (37573).

The spelling of 12937444 in words is "twelve million, nine hundred thirty-seven thousand, four hundred forty-four".

Divisors: 1 2 4 13 26 52 248797 497594 995188 3234361 6468722 12937444