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214205 = 542841
BaseRepresentation
bin110100010010111101
3101212211112
4310102331
523323310
64331405
71551335
oct642275
9355745
10214205
11136a32
12a3b65
1376664
14580c5
1543705
hex344bd

214205 has 4 divisors (see below), whose sum is σ = 257052. Its totient is φ = 171360.

The previous prime is 214189. The next prime is 214211. The reversal of 214205 is 502412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 139129 + 75076 = 373^2 + 274^2 .

It is not a de Polignac number, because 214205 - 24 = 214189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 214205.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 214205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21416 + ... + 21425.

It is an arithmetic number, because the mean of its divisors is an integer number (64263).

2214205 is an apocalyptic number.

It is an amenable number.

214205 is a deficient number, since it is larger than the sum of its proper divisors (42847).

214205 is an equidigital number, since it uses as much as digits as its factorization.

214205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42846.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 214205 is about 462.8228602824. The cubic root of 214205 is about 59.8333337644.

Adding to 214205 its reverse (502412), we get a palindrome (716617).

The spelling of 214205 in words is "two hundred fourteen thousand, two hundred five".

Divisors: 1 5 42841 214205