Base | Representation |
---|---|
bin | 10110101010110… |
… | …10110010100011 |
3 | 111020211100010222 |
4 | 23111122302203 |
5 | 342140223011 |
6 | 30511513255 |
7 | 4466240243 |
oct | 1325326243 |
9 | 436740128 |
10 | 190164131 |
11 | 98385143 |
12 | 5382882b |
13 | 30522371 |
14 | 1b381b23 |
15 | 11a64ddb |
hex | b55aca3 |
190164131 has 2 divisors, whose sum is σ = 190164132. Its totient is φ = 190164130.
The previous prime is 190164077. The next prime is 190164151. The reversal of 190164131 is 131461091.
It is a strong prime.
It is an emirp because it is prime and its reverse (131461091) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 190164131 - 210 = 190163107 is a prime.
It is a super-2 number, since 2×1901641312 = 72324793437970322, which contains 22 as substring.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 190164131.
It is not a weakly prime, because it can be changed into another prime (190164151) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95082065 + 95082066.
It is an arithmetic number, because the mean of its divisors is an integer number (95082066).
Almost surely, 2190164131 is an apocalyptic number.
190164131 is a deficient number, since it is larger than the sum of its proper divisors (1).
190164131 is an equidigital number, since it uses as much as digits as its factorization.
190164131 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 648, while the sum is 26.
The square root of 190164131 is about 13790.0011240029. The cubic root of 190164131 is about 575.0551992376.
The spelling of 190164131 in words is "one hundred ninety million, one hundred sixty-four thousand, one hundred thirty-one".
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