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12881471 is a prime number
BaseRepresentation
bin110001001000…
…111000111111
3220020110001112
4301020320333
511244201341
61140032235
7214330211
oct61107077
926213045
1012881471
1172a9049
12439267b
132890295
1419d45b1
1511e6aeb
hexc48e3f

12881471 has 2 divisors, whose sum is σ = 12881472. Its totient is φ = 12881470.

The previous prime is 12881441. The next prime is 12881501. The reversal of 12881471 is 17418821.

It is a balanced prime because it is at equal distance from previous prime (12881441) and next prime (12881501).

It is a cyclic number.

It is not a de Polignac number, because 12881471 - 210 = 12880447 is a prime.

It is a super-3 number, since 3×128814713 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12881441) by changing a digit.

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 as a sum of consecutive naturals, namely, 6440735 + 6440736.

It is an arithmetic number, because the mean of its divisors is an integer number (6440736).

Almost surely, 212881471 is an apocalyptic number.

12881471 is a deficient number, since it is larger than the sum of its proper divisors (1).

12881471 is an equidigital number, since it uses as much as digits as its factorization.

12881471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3584, while the sum is 32.

The square root of 12881471 is about 3589.0766221969. The cubic root of 12881471 is about 234.4166669861.

The spelling of 12881471 in words is "twelve million, eight hundred eighty-one thousand, four hundred seventy-one".