Search a number
-
+
53320211 = 717226357
BaseRepresentation
bin1100101101100…
…1101000010011
310201022221120122
43023121220103
5102122221321
65142500455
71215133340
oct313315023
9121287518
1053320211
112810929a
1215a3472b
13b07b729
14711d7c7
154a338ab
hex32d9a13

53320211 has 12 divisors (see below), whose sum is σ = 64735248. Its totient is φ = 43012992.

The previous prime is 53320207. The next prime is 53320229. The reversal of 53320211 is 11202335.

53320211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53320211 - 22 = 53320207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 53320211.

It is not an unprimeable number, because it can be changed into a prime (53320291) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11156 + ... + 15201.

It is an arithmetic number, because the mean of its divisors is an integer number (5394604).

Almost surely, 253320211 is an apocalyptic number.

53320211 is a deficient number, since it is larger than the sum of its proper divisors (11415037).

53320211 is a wasteful number, since it uses less digits than its factorization.

53320211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26398 (or 26381 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 53320211 is about 7302.0689533857. The cubic root of 53320211 is about 376.3835375490.

Adding to 53320211 its reverse (11202335), we get a palindrome (64522546).

The spelling of 53320211 in words is "fifty-three million, three hundred twenty thousand, two hundred eleven".

Divisors: 1 7 17 119 289 2023 26357 184499 448069 3136483 7617173 53320211