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808743913 is a prime number
BaseRepresentation
bin110000001101000…
…111001111101001
32002100210110002021
4300031013033221
53124014301123
6212130104441
726020131655
oct6015071751
92070713067
10808743913
113855732aa
121a6a1b121
13cb724ac3
14795a3a65
154b002c5d
hex303473e9

808743913 has 2 divisors, whose sum is σ = 808743914. Its totient is φ = 808743912.

The previous prime is 808743893. The next prime is 808743953. The reversal of 808743913 is 319347808.

It is a happy number.

808743913 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., 686597209 + 122146704 = 26203^2 + 11052^2 .

It is a cyclic number.

It is not a de Polignac number, because 808743913 - 29 = 808743401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 808743913.

It is not a weakly prime, because it can be changed into another prime (808743953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404371956 + 404371957.

It is an arithmetic number, because the mean of its divisors is an integer number (404371957).

Almost surely, 2808743913 is an apocalyptic number.

It is an amenable number.

808743913 is a deficient number, since it is larger than the sum of its proper divisors (1).

808743913 is an equidigital number, since it uses as much as digits as its factorization.

808743913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 808743913 is about 28438.4231806196. The cubic root of 808743913 is about 931.6876562842.

The spelling of 808743913 in words is "eight hundred eight million, seven hundred forty-three thousand, nine hundred thirteen".