Base | Representation |
---|---|
bin | 101111100110001000… |
… | …0011111001110111101 |
3 | 100202211021020222120011 |
4 | 1133030100133032331 |
5 | 3133312021401414 |
6 | 114542151023221 |
7 | 10245613126435 |
oct | 1371420371675 |
9 | 322737228504 |
10 | 102211122109 |
11 | 3a390571948 |
12 | 1798636ab11 |
13 | 983b936615 |
14 | 4d389952c5 |
15 | 29d3401dc4 |
hex | 17cc41f3bd |
102211122109 has 2 divisors, whose sum is σ = 102211122110. Its totient is φ = 102211122108.
The previous prime is 102211122089. The next prime is 102211122127. The reversal of 102211122109 is 901221112201.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 61859151225 + 40351970884 = 248715^2 + 200878^2 .
It is a cyclic number.
It is not a de Polignac number, because 102211122109 - 231 = 100063638461 is a prime.
It is a super-2 number, since 2×1022111221092 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 102211122109.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (102211122509) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105561054 + 51105561055.
It is an arithmetic number, because the mean of its divisors is an integer number (51105561055).
Almost surely, 2102211122109 is an apocalyptic number.
It is an amenable number.
102211122109 is a deficient number, since it is larger than the sum of its proper divisors (1).
102211122109 is an equidigital number, since it uses as much as digits as its factorization.
102211122109 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 144, while the sum is 22.
The spelling of 102211122109 in words is "one hundred two billion, two hundred eleven million, one hundred twenty-two thousand, one hundred nine".
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