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12803173 is a prime number
BaseRepresentation
bin110000110101…
…110001100101
3220002110122121
4300311301211
511234200143
61134225541
7213553015
oct60656145
926073577
1012803173
117255239
1243552b1
132863756
1419b3c45
1511cd7ed
hexc35c65

12803173 has 2 divisors, whose sum is σ = 12803174. Its totient is φ = 12803172.

The previous prime is 12803171. The next prime is 12803179. The reversal of 12803173 is 37130821.

12803173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12802084 + 1089 = 3578^2 + 33^2 .

It is a cyclic number.

It is not a de Polignac number, because 12803173 - 21 = 12803171 is a prime.

Together with 12803171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12803171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6401586 + 6401587.

It is an arithmetic number, because the mean of its divisors is an integer number (6401587).

Almost surely, 212803173 is an apocalyptic number.

It is an amenable number.

12803173 is a deficient number, since it is larger than the sum of its proper divisors (1).

12803173 is an equidigital number, since it uses as much as digits as its factorization.

12803173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12803173 is about 3578.1521767527. The cubic root of 12803173 is about 233.9407464357.

Adding to 12803173 its reverse (37130821), we get a palindrome (49933994).

The spelling of 12803173 in words is "twelve million, eight hundred three thousand, one hundred seventy-three".