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65683 = 193457
BaseRepresentation
bin10000000010010011
310100002201
4100002103
54100213
61224031
7362332
oct200223
9110081
1065683
1145392
1232017
1323b87
1419d19
15146dd
hex10093

65683 has 4 divisors (see below), whose sum is σ = 69160. Its totient is φ = 62208.

The previous prime is 65677. The next prime is 65687. The reversal of 65683 is 38656.

It is a semiprime because it is the product of two primes.

It is a 8-Lehmer number, since φ(65683) divides (65683-1)8.

It is a cyclic number.

It is not a de Polignac number, because 65683 - 25 = 65651 is a prime.

65683 is a lucky number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (65687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710 + ... + 1747.

It is an arithmetic number, because the mean of its divisors is an integer number (17290).

265683 is an apocalyptic number.

65683 is a deficient number, since it is larger than the sum of its proper divisors (3477).

65683 is a wasteful number, since it uses less digits than its factorization.

65683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476.

The product of its digits is 4320, while the sum is 28.

The square root of 65683 is about 256.2869485557. The cubic root of 65683 is about 40.3475956816.

The spelling of 65683 in words is "sixty-five thousand, six hundred eighty-three".

Divisors: 1 19 3457 65683