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65201 = 113577
BaseRepresentation
bin1111111010110001
310022102212
433322301
54041301
61221505
7361043
oct177261
9108385
1065201
1144a94
1231895
13238a6
1419a93
15144bb
hexfeb1

65201 has 4 divisors (see below), whose sum is σ = 65892. Its totient is φ = 64512.

The previous prime is 65183. The next prime is 65203. The reversal of 65201 is 10256.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 34225 + 30976 = 185^2 + 176^2 .

It is a cyclic number.

It is not a de Polignac number, because 65201 - 214 = 48817 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176 + ... + 401.

It is an arithmetic number, because the mean of its divisors is an integer number (16473).

265201 is an apocalyptic number.

It is an amenable number.

65201 is a deficient number, since it is larger than the sum of its proper divisors (691).

65201 is a wasteful number, since it uses less digits than its factorization.

65201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 65201 is about 255.3448648397. The cubic root of 65201 is about 40.2486593435.

Adding to 65201 its reverse (10256), we get a palindrome (75457).

Subtracting from 65201 its reverse (10256), we obtain a palindrome (54945).

The spelling of 65201 in words is "sixty-five thousand, two hundred one".

Divisors: 1 113 577 65201