Base | Representation |
---|---|
bin | 1110100101010… |
… | …01110001001111 |
3 | 22112012000110211 |
4 | 13102221301033 |
5 | 222304031231 |
6 | 20045543251 |
7 | 3013534534 |
oct | 722516117 |
9 | 275160424 |
10 | 122330191 |
11 | 63063535 |
12 | 34b74b27 |
13 | 1c461739 |
14 | 12364d8b |
15 | ab15eb1 |
hex | 74a9c4f |
122330191 has 2 divisors, whose sum is σ = 122330192. Its totient is φ = 122330190.
The previous prime is 122330179. The next prime is 122330239. The reversal of 122330191 is 191033221.
It is a weak prime.
It is an emirp because it is prime and its reverse (191033221) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 122330191 - 27 = 122330063 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (122330111) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61165095 + 61165096.
It is an arithmetic number, because the mean of its divisors is an integer number (61165096).
Almost surely, 2122330191 is an apocalyptic number.
122330191 is a deficient number, since it is larger than the sum of its proper divisors (1).
122330191 is an equidigital number, since it uses as much as digits as its factorization.
122330191 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 324, while the sum is 22.
The square root of 122330191 is about 11060.2979616283. The cubic root of 122330191 is about 496.4146060206.
The spelling of 122330191 in words is "one hundred twenty-two million, three hundred thirty thousand, one hundred ninety-one".
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