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231133041 = 3343199081
BaseRepresentation
bin11011100011011…
…00111101110001
3121002220202221000
431301230331301
5433132224131
634533552213
75504412156
oct1561547561
9532822830
10231133041
11109517747
12654a5669
1338b67c19
14229a822d
1515458ce6
hexdc6cf71

231133041 has 16 divisors (see below), whose sum is σ = 350384320. Its totient is φ = 150504480.

The previous prime is 231133039. The next prime is 231133093. The reversal of 231133041 is 140331132.

It is not a de Polignac number, because 231133041 - 21 = 231133039 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231133541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98380 + ... + 100701.

It is an arithmetic number, because the mean of its divisors is an integer number (21899020).

Almost surely, 2231133041 is an apocalyptic number.

It is an amenable number.

231133041 is a deficient number, since it is larger than the sum of its proper divisors (119251279).

231133041 is a wasteful number, since it uses less digits than its factorization.

231133041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199133 (or 199127 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 231133041 is about 15203.0602511468. The cubic root of 231133041 is about 613.6970152934.

Adding to 231133041 its reverse (140331132), we get a palindrome (371464173).

The spelling of 231133041 in words is "two hundred thirty-one million, one hundred thirty-three thousand, forty-one".

Divisors: 1 3 9 27 43 129 387 1161 199081 597243 1791729 5375187 8560483 25681449 77044347 231133041