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13471065 = 325299357
BaseRepresentation
bin110011011000…
…110101011001
3221100101211100
4303120311121
511422033230
61200422013
7222334146
oct63306531
927311740
1013471065
117671013
124617909
132a3875a
141b093cd
1512b1660
hexcd8d59

13471065 has 12 divisors (see below), whose sum is σ = 23349924. Its totient is φ = 7184544.

The previous prime is 13471049. The next prime is 13471067. The reversal of 13471065 is 56017431.

It can be written as a sum of positive squares in 2 ways, for example, as 8714304 + 4756761 = 2952^2 + 2181^2 .

It is not a de Polignac number, because 13471065 - 24 = 13471049 is a prime.

It is a super-3 number, since 3×134710653 (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13471067) 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 in 11 ways as a sum of consecutive naturals, for example, 149634 + ... + 149723.

It is an arithmetic number, because the mean of its divisors is an integer number (1945827).

Almost surely, 213471065 is an apocalyptic number.

13471065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13471065 is a deficient number, since it is larger than the sum of its proper divisors (9878859).

13471065 is a wasteful number, since it uses less digits than its factorization.

13471065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299368 (or 299365 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 13471065 is about 3670.2949472760. The cubic root of 13471065 is about 237.9399196321.

Adding to 13471065 its reverse (56017431), we get a palindrome (69488496).

The spelling of 13471065 in words is "thirteen million, four hundred seventy-one thousand, sixty-five".

Divisors: 1 3 5 9 15 45 299357 898071 1496785 2694213 4490355 13471065