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13164889 = 35936671
BaseRepresentation
bin110010001110…
…000101011001
3220202211211111
4302032011121
511332234024
61150100321
7216620413
oct62160531
926684744
1013164889
117481a81
1244aa6a1
13295c29a
141a699b3
151250a94
hexc8e159

13164889 has 4 divisors (see below), whose sum is σ = 13201920. Its totient is φ = 13127860.

The previous prime is 13164887. The next prime is 13164973. The reversal of 13164889 is 98846131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98846131 = 167591893.

It is a cyclic number.

It is not a de Polignac number, because 13164889 - 21 = 13164887 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13164881) 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 3 ways as a sum of consecutive naturals, for example, 17977 + ... + 18694.

It is an arithmetic number, because the mean of its divisors is an integer number (3300480).

Almost surely, 213164889 is an apocalyptic number.

It is an amenable number.

13164889 is a deficient number, since it is larger than the sum of its proper divisors (37031).

13164889 is an equidigital number, since it uses as much as digits as its factorization.

13164889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37030.

The product of its digits is 41472, while the sum is 40.

The square root of 13164889 is about 3628.3452151084. The cubic root of 13164889 is about 236.1234212708.

The spelling of 13164889 in words is "thirteen million, one hundred sixty-four thousand, eight hundred eighty-nine".

Divisors: 1 359 36671 13164889