Base | Representation |
---|---|
bin | 10110100110001001… |
… | …00100010001100100 |
3 | 1011022102211222002220 |
4 | 23103010210101210 |
5 | 144321031434244 |
6 | 5323432032340 |
7 | 606422566254 |
oct | 132304442144 |
9 | 34272758086 |
10 | 12131124324 |
11 | 5165781290 |
12 | 24268326b0 |
13 | 11b4384c97 |
14 | 8311d1964 |
15 | 4b0022319 |
hex | 2d3124464 |
12131124324 has 96 divisors (see below), whose sum is σ = 32346445824. Its totient is φ = 3502667520.
The previous prime is 12131124323. The next prime is 12131124331. The reversal of 12131124324 is 42342113121.
It is a nude number because it is divisible by every one of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 12131124294 and 12131124303.
It is not an unprimeable number, because it can be changed into a prime (12131124323) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 790872 + ... + 806064.
It is an arithmetic number, because the mean of its divisors is an integer number (336942144).
Almost surely, 212131124324 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12131124324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16173222912).
12131124324 is an abundant number, since it is smaller than the sum of its proper divisors (20215321500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12131124324 is a wasteful number, since it uses less digits than its factorization.
12131124324 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15497 (or 15495 counting only the distinct ones).
The product of its digits is 1152, while the sum is 24.
Adding to 12131124324 its reverse (42342113121), we get a palindrome (54473237445).
The spelling of 12131124324 in words is "twelve billion, one hundred thirty-one million, one hundred twenty-four thousand, three hundred twenty-four".
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