Base | Representation |
---|---|
bin | 111000111101010000… |
… | …0000100100111110101 |
3 | 102200201021221211222102 |
4 | 1301322200010213311 |
5 | 4000444430442211 |
6 | 132105044111445 |
7 | 11560030333145 |
oct | 1617240044765 |
9 | 380637854872 |
10 | 122314312181 |
11 | 47967271116 |
12 | 1b856995585 |
13 | b6c3800a69 |
14 | 5cc485c925 |
15 | 32ad252a3b |
hex | 1c7a8049f5 |
122314312181 has 2 divisors, whose sum is σ = 122314312182. Its totient is φ = 122314312180.
The previous prime is 122314312147. The next prime is 122314312189. The reversal of 122314312181 is 181213413221.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 122126485156 + 187827025 = 349466^2 + 13705^2 .
It is a cyclic number.
It is not a de Polignac number, because 122314312181 - 26 = 122314312117 is a prime.
It is a super-2 number, since 2×1223143121812 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (122314312189) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61157156090 + 61157156091.
It is an arithmetic number, because the mean of its divisors is an integer number (61157156091).
Almost surely, 2122314312181 is an apocalyptic number.
It is an amenable number.
122314312181 is a deficient number, since it is larger than the sum of its proper divisors (1).
122314312181 is an equidigital number, since it uses as much as digits as its factorization.
122314312181 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2304, while the sum is 29.
The spelling of 122314312181 in words is "one hundred twenty-two billion, three hundred fourteen million, three hundred twelve thousand, one hundred eighty-one".
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