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230105 = 546021
BaseRepresentation
bin111000001011011001
3102200122102
4320023121
524330410
64533145
71645601
oct701331
9380572
10230105
11147977
12b11b5
1380975
145dc01
15482a5
hex382d9

230105 has 4 divisors (see below), whose sum is σ = 276132. Its totient is φ = 184080.

The previous prime is 230101. The next prime is 230107. The reversal of 230105 is 501032.

230105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 170569 + 59536 = 413^2 + 244^2 .

It is not a de Polignac number, because 230105 - 22 = 230101 is a prime.

It is a super-2 number, since 2×2301052 = 105896622050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (230101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23006 + ... + 23015.

It is an arithmetic number, because the mean of its divisors is an integer number (69033).

2230105 is an apocalyptic number.

It is an amenable number.

230105 is a deficient number, since it is larger than the sum of its proper divisors (46027).

230105 is an equidigital number, since it uses as much as digits as its factorization.

230105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46026.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 230105 is about 479.6926099076. The cubic root of 230105 is about 61.2785789164.

Adding to 230105 its reverse (501032), we get a palindrome (731137).

The spelling of 230105 in words is "two hundred thirty thousand, one hundred five".

Divisors: 1 5 46021 230105