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230205 = 35103149
BaseRepresentation
bin111000001100111101
3102200210010
4320030331
524331310
64533433
71646103
oct701475
9380703
10230205
11147a58
12b1279
1380a21
145dc73
1548320
hex3833d

230205 has 16 divisors (see below), whose sum is σ = 374400. Its totient is φ = 120768.

The previous prime is 230203. The next prime is 230213. The reversal of 230205 is 502032.

It is not a de Polignac number, because 230205 - 21 = 230203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1471 + ... + 1619.

It is an arithmetic number, because the mean of its divisors is an integer number (23400).

2230205 is an apocalyptic number.

It is an amenable number.

230205 is a deficient number, since it is larger than the sum of its proper divisors (144195).

230205 is a wasteful number, since it uses less digits than its factorization.

230205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260.

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 230205 is about 479.7968320029. The cubic root of 230205 is about 61.2874545317.

Adding to 230205 its reverse (502032), we get a palindrome (732237).

It can be divided in two parts, 230 and 205, that added together give a triangular number (435 = T29).

The spelling of 230205 in words is "two hundred thirty thousand, two hundred five".

Divisors: 1 3 5 15 103 149 309 447 515 745 1545 2235 15347 46041 76735 230205