Base | Representation |
---|---|
bin | 11011011110000… |
… | …01110100011111 |
3 | 121001121011022200 |
4 | 31233001310133 |
5 | 432442311111 |
6 | 34510542543 |
7 | 5465432334 |
oct | 1557016437 |
9 | 531534280 |
10 | 230432031 |
11 | 109088aa5 |
12 | 65207a53 |
13 | 38980b1b |
14 | 2286498b |
15 | 1536b256 |
hex | dbc1d1f |
230432031 has 6 divisors (see below), whose sum is σ = 332846280. Its totient is φ = 153621348.
The previous prime is 230432011. The next prime is 230432047. The reversal of 230432031 is 130234032.
230432031 is a `hidden beast` number, since 230 + 432 + 0 + 3 + 1 = 666.
It is not a de Polignac number, because 230432031 - 29 = 230431519 is a prime.
It is a super-2 number, since 2×2304320312 = 106197841821569922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 230431995 and 230432013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230432011) 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 5 ways as a sum of consecutive naturals, for example, 12801771 + ... + 12801788.
It is an arithmetic number, because the mean of its divisors is an integer number (55474380).
Almost surely, 2230432031 is an apocalyptic number.
230432031 is a deficient number, since it is larger than the sum of its proper divisors (102414249).
230432031 is a wasteful number, since it uses less digits than its factorization.
230432031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25603565 (or 25603562 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
The square root of 230432031 is about 15179.9878458449. The cubic root of 230432031 is about 613.0759539242.
Adding to 230432031 its reverse (130234032), we get a palindrome (360666063).
The spelling of 230432031 in words is "two hundred thirty million, four hundred thirty-two thousand, thirty-one".
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