Base | Representation |
---|---|
bin | 10111010011100101… |
… | …11000011100011000 |
3 | 1012022000012222001110 |
4 | 23221302320130120 |
5 | 201111131124222 |
6 | 5425331220320 |
7 | 622032225150 |
oct | 135162703430 |
9 | 35260188043 |
10 | 12512364312 |
11 | 53409a3558 |
12 | 25124476a0 |
13 | 1245358686 |
14 | 869ab1760 |
15 | 4d372c30c |
hex | 2e9cb8718 |
12512364312 has 32 divisors (see below), whose sum is σ = 35749612800. Its totient is φ = 3574961184.
The previous prime is 12512364301. The next prime is 12512364313. The reversal of 12512364312 is 21346321521.
12512364312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×125123643122 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 12512364312.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12512364313) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37239012 + ... + 37239347.
It is an arithmetic number, because the mean of its divisors is an integer number (1117175400).
Almost surely, 212512364312 is an apocalyptic number.
12512364312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
12512364312 is an abundant number, since it is smaller than the sum of its proper divisors (23237248488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12512364312 is a wasteful number, since it uses less digits than its factorization.
12512364312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74478375 (or 74478371 counting only the distinct ones).
The product of its digits is 8640, while the sum is 30.
Adding to 12512364312 its reverse (21346321521), we get a palindrome (33858685833).
The spelling of 12512364312 in words is "twelve billion, five hundred twelve million, three hundred sixty-four thousand, three hundred twelve".
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