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809030 = 25174759
BaseRepresentation
bin11000101100001000110
31112002210002
43011201012
5201342110
625201302
76606455
oct3054106
91462702
10809030
11502922
12330232
13224321
14170b9c
1510eaa5
hexc5846

809030 has 16 divisors (see below), whose sum is σ = 1542240. Its totient is φ = 304512.

The previous prime is 809023. The next prime is 809041. The reversal of 809030 is 30908.

It is a junction number, because it is equal to n+sod(n) for n = 808993 and 809011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2210 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (96390).

2809030 is an apocalyptic number.

809030 is a deficient number, since it is larger than the sum of its proper divisors (733210).

809030 is a wasteful number, since it uses less digits than its factorization.

809030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 809030 is about 899.4609496804. The cubic root of 809030 is about 93.1797502470.

Adding to 809030 its reverse (30908), we get a palindrome (839938).

The spelling of 809030 in words is "eight hundred nine thousand, thirty".

Divisors: 1 2 5 10 17 34 85 170 4759 9518 23795 47590 80903 161806 404515 809030