Base | Representation |
---|---|
bin | 101110011100… |
… | …001101010001 |
3 | 211220111210212 |
4 | 232130031101 |
5 | 11104033121 |
6 | 1112533505 |
7 | 205323116 |
oct | 56341521 |
9 | 24814725 |
10 | 12174161 |
11 | 696569a |
12 | 40b1295 |
13 | 26a335c |
14 | 188c90d |
15 | 110725b |
hex | b9c351 |
12174161 has 2 divisors, whose sum is σ = 12174162. Its totient is φ = 12174160.
The previous prime is 12174143. The next prime is 12174163. The reversal of 12174161 is 16147121.
It is a happy number.
12174161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10042561 + 2131600 = 3169^2 + 1460^2 .
It is an emirp because it is prime and its reverse (16147121) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12174161 - 222 = 7979857 is a prime.
Together with 12174163, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (12174163) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6087080 + 6087081.
It is an arithmetic number, because the mean of its divisors is an integer number (6087081).
Almost surely, 212174161 is an apocalyptic number.
It is an amenable number.
12174161 is a deficient number, since it is larger than the sum of its proper divisors (1).
12174161 is an equidigital number, since it uses as much as digits as its factorization.
12174161 is an evil number, because the sum of its binary digits is even.
The product of its digits is 336, while the sum is 23.
The square root of 12174161 is about 3489.1490366564. The cubic root of 12174161 is about 230.0451140237.
The spelling of 12174161 in words is "twelve million, one hundred seventy-four thousand, one hundred sixty-one".
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