Base | Representation |
---|---|
bin | 10110100101001011… |
… | …11101111110011010 |
3 | 1011021212202110002122 |
4 | 23102211331332122 |
5 | 144312003300010 |
6 | 5322544101242 |
7 | 606264450665 |
oct | 132245757632 |
9 | 34255673078 |
10 | 12123103130 |
11 | 51611a28a6 |
12 | 2424004822 |
13 | 11b2807008 |
14 | 8301046dc |
15 | 4ae48a855 |
hex | 2d297df9a |
12123103130 has 8 divisors (see below), whose sum is σ = 21821585652. Its totient is φ = 4849241248.
The previous prime is 12123103127. The next prime is 12123103171. The reversal of 12123103130 is 3130132121.
It can be written as a sum of positive squares in 2 ways, for example, as 11815907401 + 307195729 = 108701^2 + 17527^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 12123103099 and 12123103108.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606155147 + ... + 606155166.
Almost surely, 212123103130 is an apocalyptic number.
12123103130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12123103130 is a deficient number, since it is larger than the sum of its proper divisors (9698482522).
12123103130 is a wasteful number, since it uses less digits than its factorization.
12123103130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1212310320.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 12123103130 its reverse (3130132121), we get a palindrome (15253235251).
The spelling of 12123103130 in words is "twelve billion, one hundred twenty-three million, one hundred three thousand, one hundred thirty".
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