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12769944 = 2331148371
BaseRepresentation
bin110000101101…
…101010011000
3220000210001220
4300231222120
511232114234
61133412040
7213354105
oct60555230
926023056
1012769944
117232280
12433a020
1328515a5
1419a5aac
1511c3a49
hexc2da98

12769944 has 32 divisors (see below), whose sum is σ = 34827840. Its totient is φ = 3869600.

The previous prime is 12769943. The next prime is 12769949. The reversal of 12769944 is 44996721.

It is a junction number, because it is equal to n+sod(n) for n = 12769896 and 12769905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12769943) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23922 + ... + 24449.

It is an arithmetic number, because the mean of its divisors is an integer number (1088370).

Almost surely, 212769944 is an apocalyptic number.

It is an amenable number.

12769944 is an abundant number, since it is smaller than the sum of its proper divisors (22057896).

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

12769944 is a wasteful number, since it uses less digits than its factorization.

12769944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48391 (or 48387 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 12769944 is about 3573.5058416071. The cubic root of 12769944 is about 233.7381833179.

It can be divided in two parts, 127 and 69944, that multiplied together give a palindrome (8882888).

The spelling of 12769944 in words is "twelve million, seven hundred sixty-nine thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 48371 96742 145113 193484 290226 386968 532081 580452 1064162 1160904 1596243 2128324 3192486 4256648 6384972 12769944