Base | Representation |
---|---|
bin | 10110111010101010… |
… | …11010101000010111 |
3 | 1011202102212002011020 |
4 | 23131111122220113 |
5 | 200144122012211 |
6 | 5352502412223 |
7 | 613613303313 |
oct | 133525325027 |
9 | 34672762136 |
10 | 12303313431 |
11 | 5243999532 |
12 | 2474431073 |
13 | 1210c52826 |
14 | 84a014b43 |
15 | 4c01d6306 |
hex | 2dd55aa17 |
12303313431 has 8 divisors (see below), whose sum is σ = 16414619760. Its totient is φ = 8197108032.
The previous prime is 12303313411. The next prime is 12303313439. The reversal of 12303313431 is 13431330321.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12303313431 - 210 = 12303312407 is a prime.
It is a super-2 number, since 2×123033134312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12303313439) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269600 + ... + 1279253.
It is an arithmetic number, because the mean of its divisors is an integer number (2051827470).
Almost surely, 212303313431 is an apocalyptic number.
12303313431 is a deficient number, since it is larger than the sum of its proper divisors (4111306329).
12303313431 is a wasteful number, since it uses less digits than its factorization.
12303313431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2550465.
The product of its (nonzero) digits is 1944, while the sum is 24.
Adding to 12303313431 its reverse (13431330321), we get a palindrome (25734643752).
The spelling of 12303313431 in words is "twelve billion, three hundred three million, three hundred thirteen thousand, four hundred thirty-one".
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