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12896469 = 331273761
BaseRepresentation
bin110001001100…
…100011010101
3220021012122000
4301030203111
511300141334
61140225513
7214422015
oct61144325
926235560
1012896469
117309343
12439b299
132897061
1419d9c45
1511eb299
hexc4c8d5

12896469 has 16 divisors (see below), whose sum is σ = 19261440. Its totient is φ = 8527680.

The previous prime is 12896467. The next prime is 12896473. The reversal of 12896469 is 96469821.

It is a happy number.

It is not a de Polignac number, because 12896469 - 21 = 12896467 is a prime.

It is a super-2 number, since 2×128964692 = 332637825335922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12896467) 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 15 ways as a sum of consecutive naturals, for example, 1549 + ... + 5309.

It is an arithmetic number, because the mean of its divisors is an integer number (1203840).

Almost surely, 212896469 is an apocalyptic number.

It is an amenable number.

12896469 is a deficient number, since it is larger than the sum of its proper divisors (6364971).

12896469 is a wasteful number, since it uses less digits than its factorization.

12896469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897 (or 3891 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 12896469 is about 3591.1654097243. The cubic root of 12896469 is about 234.5076094354.

The spelling of 12896469 in words is "twelve million, eight hundred ninety-six thousand, four hundred sixty-nine".

Divisors: 1 3 9 27 127 381 1143 3429 3761 11283 33849 101547 477647 1432941 4298823 12896469