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13168669 is a prime number
BaseRepresentation
bin110010001111…
…000000011101
3220210001000111
4302033000131
511332344134
61150130021
7216634423
oct62170035
926701014
1013168669
1174848a8
1244b0911
132960c17
141a6b113
151251c64
hexc8f01d

13168669 has 2 divisors, whose sum is σ = 13168670. Its totient is φ = 13168668.

The previous prime is 13168663. The next prime is 13168709. The reversal of 13168669 is 96686131.

It is an a-pointer prime, because the next prime (13168709) can be obtained adding 13168669 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12425625 + 743044 = 3525^2 + 862^2 .

It is a cyclic number.

It is not a de Polignac number, because 13168669 - 25 = 13168637 is a prime.

It is a super-2 number, since 2×131686692 = 346827686463122, which contains 22 as substring.

It is a Chen prime.

It is equal to p859459 and since 13168669 and 859459 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13168663) 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 as a sum of consecutive naturals, namely, 6584334 + 6584335.

It is an arithmetic number, because the mean of its divisors is an integer number (6584335).

Almost surely, 213168669 is an apocalyptic number.

It is an amenable number.

13168669 is a deficient number, since it is larger than the sum of its proper divisors (1).

13168669 is an equidigital number, since it uses as much as digits as its factorization.

13168669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 13168669 is about 3628.8660763384. The cubic root of 13168669 is about 236.1460182741.

The spelling of 13168669 in words is "thirteen million, one hundred sixty-eight thousand, six hundred sixty-nine".