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290173 = 13217101
BaseRepresentation
bin1000110110101111101
3112202001011
41012311331
533241143
610115221
72315662
oct1066575
9482034
10290173
11189014
1211bb11
13a2100
1477a69
155ae9d
hex46d7d

290173 has 12 divisors (see below), whose sum is σ = 335988. Its totient is φ = 249600.

The previous prime is 290161. The next prime is 290183. The reversal of 290173 is 371092.

290173 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 6 ways, for example, as 729 + 289444 = 27^2 + 538^2 .

It is not a de Polignac number, because 290173 - 25 = 290141 is a prime.

It is a nialpdrome in base 13.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2823 + ... + 2923.

It is an arithmetic number, because the mean of its divisors is an integer number (27999).

2290173 is an apocalyptic number.

It is an amenable number.

290173 is a deficient number, since it is larger than the sum of its proper divisors (45815).

290173 is a wasteful number, since it uses less digits than its factorization.

290173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 290173 is about 538.6770832326. The cubic root of 290173 is about 66.2042189941.

The spelling of 290173 in words is "two hundred ninety thousand, one hundred seventy-three".

Divisors: 1 13 17 101 169 221 1313 1717 2873 17069 22321 290173