Base | Representation |
---|---|
bin | 10111001001110110… |
… | …11110101001000011 |
3 | 1012002022121121100200 |
4 | 23210323132221003 |
5 | 200424231404333 |
6 | 5413253420243 |
7 | 620021322465 |
oct | 134473365103 |
9 | 35068547320 |
10 | 12430731843 |
11 | 52a9907902 |
12 | 24ab03a683 |
13 | 123147623a |
14 | 85cd02135 |
15 | 4cb4a4c13 |
hex | 2e4edea43 |
12430731843 has 6 divisors (see below), whose sum is σ = 17955501564. Its totient is φ = 8287154556.
The previous prime is 12430731839. The next prime is 12430731967. The reversal of 12430731843 is 34813703421.
It is not a de Polignac number, because 12430731843 - 22 = 12430731839 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12430731798 and 12430731807.
It is not an unprimeable number, because it can be changed into a prime (12430731043) 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 5 ways as a sum of consecutive naturals, for example, 690596205 + ... + 690596222.
It is an arithmetic number, because the mean of its divisors is an integer number (2992583594).
Almost surely, 212430731843 is an apocalyptic number.
12430731843 is a deficient number, since it is larger than the sum of its proper divisors (5524769721).
12430731843 is a wasteful number, since it uses less digits than its factorization.
12430731843 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1381192433 (or 1381192430 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 36.
The spelling of 12430731843 in words is "twelve billion, four hundred thirty million, seven hundred thirty-one thousand, eight hundred forty-three".
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