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208061 = 729723
BaseRepresentation
bin110010110010111101
3101120101222
4302302331
523124221
64243125
71524410
oct626275
9346358
10208061
11132357
12a04a5
1373919
1455b77
15419ab
hex32cbd

208061 has 4 divisors (see below), whose sum is σ = 237792. Its totient is φ = 178332.

The previous prime is 208057. The next prime is 208067. The reversal of 208061 is 160802.

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.

It is not a de Polignac number, because 208061 - 22 = 208057 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 (208067) 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, 14855 + ... + 14868.

It is an arithmetic number, because the mean of its divisors is an integer number (59448).

2208061 is an apocalyptic number.

It is an amenable number.

208061 is a deficient number, since it is larger than the sum of its proper divisors (29731).

208061 is an equidigital number, since it uses as much as digits as its factorization.

208061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29730.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 208061 is about 456.1370408112. The cubic root of 208061 is about 59.2557128616.

Adding to 208061 its reverse (160802), we get a palindrome (368863).

The spelling of 208061 in words is "two hundred eight thousand, sixty-one".

Divisors: 1 7 29723 208061