Search a number
-
+
8604232081 = 2323721092
BaseRepresentation
bin10000000001101101…
…00010100110010001
3211012122101021111021
420000312202212101
5120110140411311
63541442315441
7423135523504
oct100066424621
924178337437
108604232081
113715956a05
121801658b81
13a717910b3
145b8a3313b
153555a2171
hex200da2991

8604232081 has 27 divisors (see below), whose sum is σ = 9329849361. Its totient is φ = 7934233824.

The previous prime is 8604232073. The next prime is 8604232121. The reversal of 8604232081 is 1802324068.

The square root of 8604232081 is 92759.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3214323025 + 5389909056 = 56695^2 + 73416^2 .

It is not a de Polignac number, because 8604232081 - 23 = 8604232073 is a prime.

It is a super-2 number, since 2×86042320812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8604232181) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 78937855 + ... + 78937963.

Almost surely, 28604232081 is an apocalyptic number.

8604232081 is the 92759-th square number.

8604232081 is the 46380-th centered octagonal number.

It is an amenable number.

8604232081 is a deficient number, since it is larger than the sum of its proper divisors (725617280).

8604232081 is an equidigital number, since it uses as much as digits as its factorization.

8604232081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The cubic root of 8604232081 is about 2049.1356325036.

The spelling of 8604232081 in words is "eight billion, six hundred four million, two hundred thirty-two thousand, eighty-one".

Divisors: 1 23 37 109 529 851 1369 2507 4033 11881 19573 31487 57661 92759 149221 273263 439597 724201 2133457 3432083 6285049 10110731 16265089 78937909 232546813 374097047 8604232081