Search a number
-
+
808830002161 = 5321453319813
BaseRepresentation
bin10111100010100100000…
…01100110001111110001
32212022201202100022210201
423301102001212033301
5101222440440032121
61415323225555201
7112302363403366
oct13612201461761
92768652308721
10808830002161
112920284a5045
1211090b645b01
135b37044861c
142b20cd6846d
151608d5dde91
hexbc520663f1

808830002161 has 12 divisors (see below), whose sum is σ = 824477223388. Its totient is φ = 793474403904.

The previous prime is 808830002119. The next prime is 808830002171. The reversal of 808830002161 is 161200038808.

It can be written as a sum of positive squares in 6 ways, for example, as 8375910400 + 800454091761 = 91520^2 + 894681^2 .

It is not a de Polignac number, because 808830002161 - 211 = 808830000113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 808830002161.

It is not an unprimeable number, because it can be changed into a prime (808830002111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40813291 + ... + 40833103.

Almost surely, 2808830002161 is an apocalyptic number.

It is an amenable number.

808830002161 is a deficient number, since it is larger than the sum of its proper divisors (15647221227).

808830002161 is a wasteful number, since it uses less digits than its factorization.

808830002161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34452 (or 34399 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The spelling of 808830002161 in words is "eight hundred eight billion, eight hundred thirty million, two thousand, one hundred sixty-one".

Divisors: 1 53 2809 14533 19813 770249 1050089 40823197 55654717 287942329 15260943437 808830002161