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208093 = 593527
BaseRepresentation
bin110010110011011101
3101120110011
4302303131
523124333
64243221
71524454
oct626335
9346404
10208093
11132386
12a0511
1373942
1455b9b
15419cd
hex32cdd

208093 has 4 divisors (see below), whose sum is σ = 211680. Its totient is φ = 204508.

The previous prime is 208073. The next prime is 208099. The reversal of 208093 is 390802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 390802 = 2195401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-208093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208099) 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, 1705 + ... + 1822.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2208093 is an apocalyptic number.

It is an amenable number.

208093 is a deficient number, since it is larger than the sum of its proper divisors (3587).

208093 is an equidigital number, since it uses as much as digits as its factorization.

208093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 208093 is about 456.1721166402. The cubic root of 208093 is about 59.2587505695.

Adding to 208093 its reverse (390802), we get a palindrome (598895).

The spelling of 208093 in words is "two hundred eight thousand, ninety-three".

Divisors: 1 59 3527 208093