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808808868 = 223371069853
BaseRepresentation
bin110000001101010…
…111000110100100
32002100220202012000
4300031113012210
53124023340433
6212131325300
726020522230
oct6015270644
92070822160
10808808868
1138560808a
121a6a50830
13cb74853a
14795bd5c0
154b017113
hex303571a4

808808868 has 48 divisors (see below), whose sum is σ = 2396472960. Its totient is φ = 231088032.

The previous prime is 808808837. The next prime is 808808911. The reversal of 808808868 is 868808808.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534171 + ... + 535682.

It is an arithmetic number, because the mean of its divisors is an integer number (49926520).

Almost surely, 2808808868 is an apocalyptic number.

It is an amenable number.

808808868 is an abundant number, since it is smaller than the sum of its proper divisors (1587664092).

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

808808868 is a wasteful number, since it uses less digits than its factorization.

808808868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069873 (or 1069865 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 54.

The square root of 808808868 is about 28439.5651865495. The cubic root of 808808868 is about 931.7125987292.

The spelling of 808808868 in words is "eight hundred eight million, eight hundred eight thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 1069853 2139706 3209559 4279412 6419118 7488971 9628677 12838236 14977942 19257354 22466913 28886031 29955884 38514708 44933826 57772062 67400739 89867652 115544124 134801478 202202217 269602956 404404434 808808868