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230234405 = 546046881
BaseRepresentation
bin11011011100100…
…01100100100101
3121001020010020012
431232101210211
5432420000110
634502420005
75463650222
oct1556214445
9531203205
10230234405
11108a63575
1265131605
1338911b9b
1422812949
151532c905
hexdb91925

230234405 has 4 divisors (see below), whose sum is σ = 276281292. Its totient is φ = 184187520.

The previous prime is 230234401. The next prime is 230234413. The reversal of 230234405 is 504432032.

230234405 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 167159041 + 63075364 = 12929^2 + 7942^2 .

It is not a de Polignac number, because 230234405 - 22 = 230234401 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 (230234401) 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, 23023436 + ... + 23023445.

It is an arithmetic number, because the mean of its divisors is an integer number (69070323).

Almost surely, 2230234405 is an apocalyptic number.

It is an amenable number.

230234405 is a deficient number, since it is larger than the sum of its proper divisors (46046887).

230234405 is an equidigital number, since it uses as much as digits as its factorization.

230234405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46046886.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 230234405 is about 15173.4770240707. The cubic root of 230234405 is about 612.9006391740.

Adding to 230234405 its reverse (504432032), we get a palindrome (734666437).

The spelling of 230234405 in words is "two hundred thirty million, two hundred thirty-four thousand, four hundred five".

Divisors: 1 5 46046881 230234405