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230442141 = 3591817193
BaseRepresentation
bin11011011110001…
…00010010011101
3121001121200012010
431233010102131
5432443122031
634511101433
75465503656
oct1557042235
9531550163
10230442141
11109095656
1265211879
13389855c7
142286852d
151536e246
hexdbc449d

230442141 has 16 divisors (see below), whose sum is σ = 314233920. Its totient is φ = 150168960.

The previous prime is 230442109. The next prime is 230442169. The reversal of 230442141 is 141244032.

It is not a de Polignac number, because 230442141 - 25 = 230442109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230442041) 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, 28441 + ... + 35633.

It is an arithmetic number, because the mean of its divisors is an integer number (19639620).

Almost surely, 2230442141 is an apocalyptic number.

It is an amenable number.

230442141 is a deficient number, since it is larger than the sum of its proper divisors (83791779).

230442141 is a wasteful number, since it uses less digits than its factorization.

230442141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7436.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 230442141 is about 15180.3208464116. The cubic root of 230442141 is about 613.0849198467.

Adding to 230442141 its reverse (141244032), we get a palindrome (371686173).

The spelling of 230442141 in words is "two hundred thirty million, four hundred forty-two thousand, one hundred forty-one".

Divisors: 1 3 59 177 181 543 7193 10679 21579 32037 424387 1273161 1301933 3905799 76814047 230442141