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804080808 = 233253210713
BaseRepresentation
bin101111111011010…
…100110010101000
32002001000112111200
4233323110302220
53121321041213
6211442124200
725632400626
oct5773246250
92061015450
10804080808
113829788a3
121a5350660
13ca78147b
1478b0c516
154a8d1273
hex2fed4ca8

804080808 has 48 divisors (see below), whose sum is σ = 2218818420. Its totient is φ = 262968576.

The previous prime is 804080803. The next prime is 804080819. The reversal of 804080808 is 808080408.

It can be written as a sum of positive squares in 2 ways, for example, as 752843844 + 51236964 = 27438^2 + 7158^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (804080803) 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 11 ways as a sum of consecutive naturals, for example, 101541 + ... + 109172.

Almost surely, 2804080808 is an apocalyptic number.

It is an amenable number.

804080808 is an abundant number, since it is smaller than the sum of its proper divisors (1414737612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

804080808 is a wasteful number, since it uses less digits than its factorization.

804080808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210778 (or 210771 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 804080808 is about 28356.3186609264. The cubic root of 804080808 is about 929.8935431387.

The spelling of 804080808 in words is "eight hundred four million, eighty thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 53 72 106 159 212 318 424 477 636 954 1272 1908 3816 210713 421426 632139 842852 1264278 1685704 1896417 2528556 3792834 5057112 7585668 11167789 15171336 22335578 33503367 44671156 67006734 89342312 100510101 134013468 201020202 268026936 402040404 804080808