Search a number
-
+
808072808 = 23109926689
BaseRepresentation
bin110000001010100…
…011011001101000
32002022112100111112
4300022203121220
53123331312213
6212103445452
726011335254
oct6012433150
92068470445
10808072808
11385155074
121a6756888
13cb54b4ba
147946b264
154ae1dea8
hex302a3668

808072808 has 16 divisors (see below), whose sum is σ = 1529038500. Its totient is φ = 400329216.

The previous prime is 808072807. The next prime is 808072829. The reversal of 808072808 is 808270808.

It can be written as a sum of positive squares in 2 ways, for example, as 795127204 + 12945604 = 28198^2 + 3598^2 .

It is not an unprimeable number, because it can be changed into a prime (808072807) 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, 462473 + ... + 464216.

Almost surely, 2808072808 is an apocalyptic number.

It is an amenable number.

808072808 is a deficient number, since it is larger than the sum of its proper divisors (720965692).

808072808 is a wasteful number, since it uses less digits than its factorization.

808072808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926804 (or 926800 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 41.

The square root of 808072808 is about 28426.6214665057. The cubic root of 808072808 is about 931.4298765908.

The spelling of 808072808 in words is "eight hundred eight million, seventy-two thousand, eight hundred eight".

Divisors: 1 2 4 8 109 218 436 872 926689 1853378 3706756 7413512 101009101 202018202 404036404 808072808