Base | Representation |
---|---|
bin | 10110100110000011… |
… | …00011010011010101 |
3 | 1011022101100210212021 |
4 | 23103001203103111 |
5 | 144320331141114 |
6 | 5323403053141 |
7 | 606413064661 |
oct | 132301432325 |
9 | 34271323767 |
10 | 12130333909 |
11 | 5165291451 |
12 | 24265111b1 |
13 | 11b4169295 |
14 | 8310678a1 |
15 | 4aee18024 |
hex | 2d30634d5 |
12130333909 has 2 divisors, whose sum is σ = 12130333910. Its totient is φ = 12130333908.
The previous prime is 12130333907. The next prime is 12130333921. The reversal of 12130333909 is 90933303121.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 9756500625 + 2373833284 = 98775^2 + 48722^2 .
It is a cyclic number.
It is not a de Polignac number, because 12130333909 - 21 = 12130333907 is a prime.
Together with 12130333907, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12130333907) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065166954 + 6065166955.
It is an arithmetic number, because the mean of its divisors is an integer number (6065166955).
Almost surely, 212130333909 is an apocalyptic number.
It is an amenable number.
12130333909 is a deficient number, since it is larger than the sum of its proper divisors (1).
12130333909 is an equidigital number, since it uses as much as digits as its factorization.
12130333909 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 13122, while the sum is 34.
The spelling of 12130333909 in words is "twelve billion, one hundred thirty million, three hundred thirty-three thousand, nine hundred nine".
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