Base | Representation |
---|---|
bin | 10111001000100101… |
… | …11011000100111100 |
3 | 1012001120121110202222 |
4 | 23210102323010330 |
5 | 200414021203122 |
6 | 5412233504512 |
7 | 616532053166 |
oct | 134422730474 |
9 | 35046543688 |
10 | 12420100412 |
11 | 52a39062a5 |
12 | 24a7572138 |
13 | 122c1c3155 |
14 | 85b735936 |
15 | 4ca5a4b42 |
hex | 2e44bb13c |
12420100412 has 12 divisors (see below), whose sum is σ = 21997045896. Its totient is φ = 6135230160.
The previous prime is 12420100403. The next prime is 12420100447. The reversal of 12420100412 is 21400102421.
12420100412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 18704639 + ... + 18705302.
It is an arithmetic number, because the mean of its divisors is an integer number (1833087158).
Almost surely, 212420100412 is an apocalyptic number.
It is an amenable number.
12420100412 is a deficient number, since it is larger than the sum of its proper divisors (9576945484).
12420100412 is a wasteful number, since it uses less digits than its factorization.
12420100412 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37410028 (or 37410026 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 17.
Adding to 12420100412 its reverse (21400102421), we get a palindrome (33820202833).
The spelling of 12420100412 in words is "twelve billion, four hundred twenty million, one hundred thousand, four hundred twelve".
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