65306 has 4 divisors (see below), whose sum is σ = 97962. Its totient is φ = 32652.
The previous prime is 65293. The next prime is 65309. The reversal of 65306 is 60356.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 58081 + 7225 = 241^2 + 85^2 .
It is not an unprimeable number, because it can be changed into a prime (65309) 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 as a sum of consecutive naturals, namely, 16325 + ... + 16328.
265306 is an apocalyptic number.
65306 is a deficient number, since it is larger than the sum of its proper divisors (32656).
65306 is a wasteful number, since it uses less digits than its factorization.
65306 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32655.
The product of its (nonzero) digits is 540, while the sum is 20.
The square root of 65306 is about 255.5503864212. The cubic root of 65306 is about 40.2702533000.
Subtracting from 65306 its reverse (60356), we obtain a triangular number (4950 = T99).
The spelling of 65306 in words is "sixty-five thousand, three hundred six".
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