Base | Representation |
---|---|
bin | 10110100110001001… |
… | …11001001100110001 |
3 | 1011022110000022200022 |
4 | 23103010321030301 |
5 | 144321042210113 |
6 | 5323433533225 |
7 | 606423404165 |
oct | 132304711461 |
9 | 34273008608 |
10 | 12131210033 |
11 | 516582a718 |
12 | 2426874215 |
13 | 11b43b4cb7 |
14 | 831214ca5 |
15 | 4b003c908 |
hex | 2d3139331 |
12131210033 has 16 divisors (see below), whose sum is σ = 12351398400. Its totient is φ = 11913436416.
The previous prime is 12131209967. The next prime is 12131210051. The reversal of 12131210033 is 33001213121.
It is a cyclic number.
It is not a de Polignac number, because 12131210033 - 28 = 12131209777 is a prime.
It is a super-2 number, since 2×121312100332 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12131209993 and 12131210020.
It is not an unprimeable number, because it can be changed into a prime (12131210083) 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, 10219466 + ... + 10220652.
It is an arithmetic number, because the mean of its divisors is an integer number (771962400).
Almost surely, 212131210033 is an apocalyptic number.
It is an amenable number.
12131210033 is a deficient number, since it is larger than the sum of its proper divisors (220188367).
12131210033 is a wasteful number, since it uses less digits than its factorization.
12131210033 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2056.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 12131210033 its reverse (33001213121), we get a palindrome (45132423154).
The spelling of 12131210033 in words is "twelve billion, one hundred thirty-one million, two hundred ten thousand, thirty-three".
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