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13016817 = 3211211953
BaseRepresentation
bin110001101001…
…111011110001
3220111022201100
4301221323301
511313014232
61142555013
7215432622
oct61517361
926438640
1013016817
117390800
124438a69
132909a78
141a2ba49
151221c7c
hexc69ef1

13016817 has 18 divisors (see below), whose sum is σ = 20668466. Its totient is φ = 7888320.

The previous prime is 13016813. The next prime is 13016819. The reversal of 13016817 is 71861031.

13016817 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12702096 + 314721 = 3564^2 + 561^2 .

It is not a de Polignac number, because 13016817 - 22 = 13016813 is a prime.

It is a super-2 number, since 2×130168172 = 338875049622978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13016813) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4888 + ... + 7065.

Almost surely, 213016817 is an apocalyptic number.

It is an amenable number.

13016817 is a deficient number, since it is larger than the sum of its proper divisors (7651649).

13016817 is a wasteful number, since it uses less digits than its factorization.

13016817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11981 (or 11967 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 13016817 is about 3607.8826200418. The cubic root of 13016817 is about 235.2348158408.

Adding to 13016817 its reverse (71861031), we get a palindrome (84877848).

It can be divided in two parts, 1301 and 6817, that added together give a palindrome (8118).

The spelling of 13016817 in words is "thirteen million, sixteen thousand, eight hundred seventeen".

Divisors: 1 3 9 11 33 99 121 363 1089 11953 35859 107577 131483 394449 1183347 1446313 4338939 13016817