Base | Representation |
---|---|
bin | 10111001111000100… |
… | …00100110101010101 |
3 | 1012012100210101112200 |
4 | 23213202010311111 |
5 | 201021421413211 |
6 | 5421453435113 |
7 | 621061454211 |
oct | 134742046525 |
9 | 35170711480 |
10 | 12474404181 |
11 | 5321526548 |
12 | 250179ba99 |
13 | 123a527465 |
14 | 864a2d941 |
15 | 4d022eb56 |
hex | 2e7884d55 |
12474404181 has 24 divisors (see below), whose sum is σ = 18175641120. Its totient is φ = 8244045216.
The previous prime is 12474404149. The next prime is 12474404207. The reversal of 12474404181 is 18140447421.
12474404181 is a `hidden beast` number, since 1 + 2 + 4 + 74 + 404 + 181 = 666.
12474404181 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 12474404181 - 25 = 12474404149 is a prime.
It is a super-2 number, since 2×124744041812 (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 (12474404101) 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 23 ways as a sum of consecutive naturals, for example, 571690 + ... + 593108.
It is an arithmetic number, because the mean of its divisors is an integer number (757318380).
Almost surely, 212474404181 is an apocalyptic number.
It is an amenable number.
12474404181 is a deficient number, since it is larger than the sum of its proper divisors (5701236939).
12474404181 is a wasteful number, since it uses less digits than its factorization.
12474404181 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21985 (or 21982 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 36.
The spelling of 12474404181 in words is "twelve billion, four hundred seventy-four million, four hundred four thousand, one hundred eighty-one".
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