Base | Representation |
---|---|
bin | 11011011110000… |
… | …01110110100001 |
3 | 121001121011111111 |
4 | 31233001312201 |
5 | 432442312121 |
6 | 34510543321 |
7 | 5465432611 |
oct | 1557016641 |
9 | 531534444 |
10 | 230432161 |
11 | 109089103 |
12 | 65207b41 |
13 | 38980bbb |
14 | 22864a41 |
15 | 1536b2e1 |
hex | dbc1da1 |
230432161 has 4 divisors (see below), whose sum is σ = 243987012. Its totient is φ = 216877312.
The previous prime is 230432159. The next prime is 230432203. The reversal of 230432161 is 161234032.
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 152992161 + 77440000 = 12369^2 + 8800^2 .
It is a cyclic number.
It is not a de Polignac number, because 230432161 - 21 = 230432159 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (230432861) 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, 6777400 + ... + 6777433.
It is an arithmetic number, because the mean of its divisors is an integer number (60996753).
Almost surely, 2230432161 is an apocalyptic number.
It is an amenable number.
230432161 is a deficient number, since it is larger than the sum of its proper divisors (13554851).
230432161 is a wasteful number, since it uses less digits than its factorization.
230432161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13554850.
The product of its (nonzero) digits is 864, while the sum is 22.
The square root of 230432161 is about 15179.9921277977. The cubic root of 230432161 is about 613.0760692146.
Adding to 230432161 its reverse (161234032), we get a palindrome (391666193).
The spelling of 230432161 in words is "two hundred thirty million, four hundred thirty-two thousand, one hundred sixty-one".
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