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809095097 = 1831441887
BaseRepresentation
bin110000001110011…
…100111110111001
32002101110021211002
4300032130332321
53124112020342
6212141414345
726023123556
oct6016347671
92071407732
10809095097
11385793138
121a6b6a3b5
13cb8188c5
1479655a2d
154b071d32
hex3039cfb9

809095097 has 4 divisors (see below), whose sum is σ = 809538816. Its totient is φ = 808651380.

The previous prime is 809095087. The next prime is 809095109. The reversal of 809095097 is 790590908.

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.

It is a cyclic number.

It is not a de Polignac number, because 809095097 - 212 = 809091001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (809095087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219113 + ... + 222774.

It is an arithmetic number, because the mean of its divisors is an integer number (202384704).

Almost surely, 2809095097 is an apocalyptic number.

It is an amenable number.

809095097 is a deficient number, since it is larger than the sum of its proper divisors (443719).

809095097 is a wasteful number, since it uses less digits than its factorization.

809095097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443718.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 809095097 is about 28444.5969737664. The cubic root of 809095097 is about 931.8224935483.

The spelling of 809095097 in words is "eight hundred nine million, ninety-five thousand, ninety-seven".

Divisors: 1 1831 441887 809095097