Base | Representation |
---|---|
bin | 10110111101111111… |
… | …10101110011100111 |
3 | 1011211101100110210211 |
4 | 23132333311303213 |
5 | 200223242241012 |
6 | 5355340400251 |
7 | 614402400262 |
oct | 133677656347 |
9 | 34741313724 |
10 | 12331212007 |
11 | 5258714104 |
12 | 2481846087 |
13 | 121697016a |
14 | 84d9d7cd9 |
15 | 4c28976a7 |
hex | 2deff5ce7 |
12331212007 has 2 divisors, whose sum is σ = 12331212008. Its totient is φ = 12331212006.
The previous prime is 12331211969. The next prime is 12331212073. The reversal of 12331212007 is 70021213321.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12331212007 - 211 = 12331209959 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12331218007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6165606003 + 6165606004.
It is an arithmetic number, because the mean of its divisors is an integer number (6165606004).
Almost surely, 212331212007 is an apocalyptic number.
12331212007 is a deficient number, since it is larger than the sum of its proper divisors (1).
12331212007 is an equidigital number, since it uses as much as digits as its factorization.
12331212007 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 504, while the sum is 22.
Adding to 12331212007 its reverse (70021213321), we get a palindrome (82352425328).
The spelling of 12331212007 in words is "twelve billion, three hundred thirty-one million, two hundred twelve thousand, seven".
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