Search a number
-
+
28960305201 = 323253798897
BaseRepresentation
bin11010111110001010…
…110011000000110001
32202202021220221020100
4122332022303000301
5433302314231301
621145411503013
72043443350452
oct327612630061
982667827210
1028960305201
1111311378a33
1257428b7a69
132966b6a289
14158a327129
15b47706286
hex6be2b3031

28960305201 has 12 divisors (see below), whose sum is σ = 41833260612. Its totient is φ = 19306081536.

The previous prime is 28960305197. The next prime is 28960305203. The reversal of 28960305201 is 10250306982.

28960305201 is a `hidden beast` number, since 28 + 9 + 603 + 0 + 5 + 20 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4549367601 + 24410937600 = 67449^2 + 156240^2 .

It is not a de Polignac number, because 28960305201 - 22 = 28960305197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28960305203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243385 + ... + 342281.

It is an arithmetic number, because the mean of its divisors is an integer number (3486105051).

Almost surely, 228960305201 is an apocalyptic number.

It is an amenable number.

28960305201 is a deficient number, since it is larger than the sum of its proper divisors (12872955411).

28960305201 is a wasteful number, since it uses less digits than its factorization.

28960305201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131440 (or 131437 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 28960305201 in words is "twenty-eight billion, nine hundred sixty million, three hundred five thousand, two hundred one".

Divisors: 1 3 9 32537 97611 98897 292833 296691 890073 3217811689 9653435067 28960305201