Base | Representation |
---|---|
bin | 101111100100… |
… | …011100000010 |
3 | 212110112122112 |
4 | 233210130002 |
5 | 11143020033 |
6 | 1123135322 |
7 | 210664511 |
oct | 57443402 |
9 | 25415575 |
10 | 12470018 |
11 | 7047a00 |
12 | 4214542 |
13 | 2777c12 |
14 | 1928678 |
15 | 1164c48 |
hex | be4702 |
12470018 has 18 divisors (see below), whose sum is σ = 20651043. Its totient is φ = 5643220.
The previous prime is 12470009. The next prime is 12470041. The reversal of 12470018 is 81007421.
It can be written as a sum of positive squares in only one way, i.e., 6235009 + 6235009 = 2497^2 + 2497^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=2497.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12469975 and 12470002.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 54821 + ... + 55047.
Almost surely, 212470018 is an apocalyptic number.
12470018 is a deficient number, since it is larger than the sum of its proper divisors (8181025).
12470018 is an equidigital number, since it uses as much as digits as its factorization.
12470018 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 478 (or 240 counting only the distinct ones).
The product of its (nonzero) digits is 448, while the sum is 23.
The square root of 12470018 is about 3531.2912652456. The cubic root of 12470018 is about 231.8937409748.
Adding to 12470018 its reverse (81007421), we get a palindrome (93477439).
The spelling of 12470018 in words is "twelve million, four hundred seventy thousand, eighteen".
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