Base | Representation |
---|---|
bin | 10110101110010111… |
… | …01100000100001111 |
3 | 1011111020122022002200 |
4 | 23113023230010033 |
5 | 144441211200421 |
6 | 5334334252543 |
7 | 611221065663 |
oct | 132713540417 |
9 | 34436568080 |
10 | 12200100111 |
11 | 51a0702871 |
12 | 2445957153 |
13 | 11c5755564 |
14 | 83a4288a3 |
15 | 4b60e9726 |
hex | 2d72ec10f |
12200100111 has 6 divisors (see below), whose sum is σ = 17622366840. Its totient is φ = 8133400068.
The previous prime is 12200100091. The next prime is 12200100119. The reversal of 12200100111 is 11100100221.
It is a happy number.
It is not a de Polignac number, because 12200100111 - 25 = 12200100079 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1355566679 = 12200100111 / (1 + 2 + 2 + 0 + 0 + 1 + 0 + 0 + 1 + 1 + 1).
It is a junction number, because it is equal to n+sod(n) for n = 12200100093 and 12200100102.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12200100119) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 677783331 + ... + 677783348.
It is an arithmetic number, because the mean of its divisors is an integer number (2937061140).
Almost surely, 212200100111 is an apocalyptic number.
12200100111 is a deficient number, since it is larger than the sum of its proper divisors (5422266729).
12200100111 is a wasteful number, since it uses less digits than its factorization.
12200100111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1355566685 (or 1355566682 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 9.
Adding to 12200100111 its reverse (11100100221), we get a palindrome (23300200332).
The spelling of 12200100111 in words is "twelve billion, two hundred million, one hundred thousand, one hundred eleven".
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