Base | Representation |
---|---|
bin | 11011011011111… |
… | …11111011110001 |
3 | 121001002110010111 |
4 | 31231333323301 |
5 | 432410142121 |
6 | 34501101321 |
7 | 5463226465 |
oct | 1555777361 |
9 | 531073114 |
10 | 230162161 |
11 | 108a14269 |
12 | 650b7841 |
13 | 388b8038 |
14 | 227d44a5 |
15 | 153162e1 |
hex | db7fef1 |
230162161 has 2 divisors, whose sum is σ = 230162162. Its totient is φ = 230162160.
The previous prime is 230162137. The next prime is 230162171. The reversal of 230162161 is 161261032.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 151290000 + 78872161 = 12300^2 + 8881^2 .
It is a cyclic number.
It is not a de Polignac number, because 230162161 - 27 = 230162033 is a prime.
It is not a weakly prime, because it can be changed into another prime (230162171) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115081080 + 115081081.
It is an arithmetic number, because the mean of its divisors is an integer number (115081081).
Almost surely, 2230162161 is an apocalyptic number.
It is an amenable number.
230162161 is a deficient number, since it is larger than the sum of its proper divisors (1).
230162161 is an equidigital number, since it uses as much as digits as its factorization.
230162161 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 432, while the sum is 22.
The square root of 230162161 is about 15171.0962359350. The cubic root of 230162161 is about 612.8365262165.
The spelling of 230162161 in words is "two hundred thirty million, one hundred sixty-two thousand, one hundred sixty-one".
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