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80804040808 = 23101100005001
BaseRepresentation
bin100101101000001001…
…0111101000001101000
321201120101001120122011
41023100102331001220
52310441313301213
6101042035005304
75560254004621
oct1132022750150
9251511046564
1080804040808
11312a5857917
12137b1139834
1378098a0cca
143ca7876a48
15217dd9303d
hex12d04bd068

80804040808 has 16 divisors (see below), whose sum is σ = 153007653060. Its totient is φ = 40002000000.

The previous prime is 80804040803. The next prime is 80804040859.

80804040808 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 50950421284 + 29853619524 = 225722^2 + 172782^2 .

It is not an unprimeable number, because it can be changed into a prime (80804040803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50001693 + ... + 50003308.

Almost surely, 280804040808 is an apocalyptic number.

It is an amenable number.

80804040808 is a deficient number, since it is larger than the sum of its proper divisors (72203612252).

80804040808 is a wasteful number, since it uses less digits than its factorization.

80804040808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100005108 (or 100005104 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

It can be divided in two parts, 808040 and 40808, that added together give a palindrome (848848).

The spelling of 80804040808 in words is "eighty billion, eight hundred four million, forty thousand, eight hundred eight".

Divisors: 1 2 4 8 101 202 404 808 100005001 200010002 400020004 800040008 10100505101 20201010202 40402020404 80804040808