Base | Representation |
---|---|
bin | 10110100101001100… |
… | …11000001001011101 |
3 | 1011021212221220011010 |
4 | 23102212120021131 |
5 | 144312020212313 |
6 | 5322550245433 |
7 | 606265405353 |
oct | 132246301135 |
9 | 34255856133 |
10 | 12123210333 |
11 | 51612663a3 |
12 | 2424056879 |
13 | 11b2843a50 |
14 | 8301317d3 |
15 | 4ae4ac4c3 |
hex | 2d299825d |
12123210333 has 16 divisors (see below), whose sum is σ = 17693062016. Its totient is φ = 7338133440.
The previous prime is 12123210329. The next prime is 12123210347. The reversal of 12123210333 is 33301232121.
It is not a de Polignac number, because 12123210333 - 22 = 12123210329 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12123210233) 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, 2545585 + ... + 2550342.
It is an arithmetic number, because the mean of its divisors is an integer number (1105816376).
Almost surely, 212123210333 is an apocalyptic number.
12123210333 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
12123210333 is a deficient number, since it is larger than the sum of its proper divisors (5569851683).
12123210333 is a wasteful number, since it uses less digits than its factorization.
12123210333 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5096004.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 12123210333 its reverse (33301232121), we get a palindrome (45424442454).
The spelling of 12123210333 in words is "twelve billion, one hundred twenty-three million, two hundred ten thousand, three hundred thirty-three".
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