Base | Representation |
---|---|
bin | 10110101110010111… |
… | …01111001111100001 |
3 | 1011111020122221221112 |
4 | 23113023233033201 |
5 | 144441212104441 |
6 | 5334334433105 |
7 | 611221151630 |
oct | 132713571741 |
9 | 34436587845 |
10 | 12200113121 |
11 | 51a0711619 |
12 | 2445962795 |
13 | 11c575b461 |
14 | 83a42d517 |
15 | 4b60ed4eb |
hex | 2d72ef3e1 |
12200113121 has 16 divisors (see below), whose sum is σ = 14769547776. Its totient is φ = 9837851136.
The previous prime is 12200113117. The next prime is 12200113151. The reversal of 12200113121 is 12131100221.
It is a cyclic number.
It is not a de Polignac number, because 12200113121 - 22 = 12200113117 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12200113096 and 12200113105.
It is not an unprimeable number, because it can be changed into a prime (12200113151) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270245 + ... + 312141.
It is an arithmetic number, because the mean of its divisors is an integer number (923096736).
Almost surely, 212200113121 is an apocalyptic number.
It is an amenable number.
12200113121 is a deficient number, since it is larger than the sum of its proper divisors (2569434655).
12200113121 is a wasteful number, since it uses less digits than its factorization.
12200113121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44368.
The product of its (nonzero) digits is 24, while the sum is 14.
Adding to 12200113121 its reverse (12131100221), we get a palindrome (24331213342).
The spelling of 12200113121 in words is "twelve billion, two hundred million, one hundred thirteen thousand, one hundred twenty-one".
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