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808220804 = 22202055201
BaseRepresentation
bin110000001011000…
…111100010000100
32002022210212111212
4300023013202010
53123401031204
6212110550552
726012522606
oct6013074204
92068725455
10808220804
11385246286
121a6808458
13cb5a0981
14794a9176
154ae4cc6e
hex302c7884

808220804 has 6 divisors (see below), whose sum is σ = 1414386414. Its totient is φ = 404110400.

The previous prime is 808220801. The next prime is 808220813. The reversal of 808220804 is 408022808.

It can be written as a sum of positive squares in only one way, i.e., 455907904 + 352312900 = 21352^2 + 18770^2 .

It is not an unprimeable number, because it can be changed into a prime (808220801) 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 as a sum of consecutive naturals, namely, 101027597 + ... + 101027604.

It is an arithmetic number, because the mean of its divisors is an integer number (235731069).

Almost surely, 2808220804 is an apocalyptic number.

It is an amenable number.

808220804 is a deficient number, since it is larger than the sum of its proper divisors (606165610).

808220804 is a wasteful number, since it uses less digits than its factorization.

808220804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202055205 (or 202055203 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 808220804 is about 28429.2244706042. The cubic root of 808220804 is about 931.4867359398.

The spelling of 808220804 in words is "eight hundred eight million, two hundred twenty thousand, eight hundred four".

Divisors: 1 2 4 202055201 404110402 808220804