Base | Representation |
---|---|
bin | 10110111011100001… |
… | …00100001011010101 |
3 | 1011202221020122211110 |
4 | 23131300210023111 |
5 | 200202432233141 |
6 | 5353315125233 |
7 | 614030634462 |
oct | 133560441325 |
9 | 34687218743 |
10 | 12310430421 |
11 | 5247a0a643 |
12 | 24768a3819 |
13 | 1212575073 |
14 | 84ad48669 |
15 | 4c0b3ee16 |
hex | 2ddc242d5 |
12310430421 has 16 divisors (see below), whose sum is σ = 16565796864. Its totient is φ = 8131186224.
The previous prime is 12310430411. The next prime is 12310430443. The reversal of 12310430421 is 12403401321.
12310430421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12310430421 - 211 = 12310428373 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12310430401) 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 15 ways as a sum of consecutive naturals, for example, 261340 + ... + 304826.
It is an arithmetic number, because the mean of its divisors is an integer number (1035362304).
Almost surely, 212310430421 is an apocalyptic number.
It is an amenable number.
12310430421 is a deficient number, since it is larger than the sum of its proper divisors (4255366443).
12310430421 is a wasteful number, since it uses less digits than its factorization.
12310430421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44360.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 12310430421 its reverse (12403401321), we get a palindrome (24713831742).
The spelling of 12310430421 in words is "twelve billion, three hundred ten million, four hundred thirty thousand, four hundred twenty-one".
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