Base | Representation |
---|---|
bin | 110001101010… |
… | …001111001000 |
3 | 220111101102020 |
4 | 301222033020 |
5 | 11313034211 |
6 | 1143004440 |
7 | 215436342 |
oct | 61521710 |
9 | 26441366 |
10 | 13018056 |
11 | 7391727 |
12 | 4439720 |
13 | 290a4bc |
14 | 1a2c292 |
15 | 1222306 |
hex | c6a3c8 |
13018056 has 32 divisors (see below), whose sum is σ = 34460640. Its totient is φ = 4083968.
The previous prime is 13018051. The next prime is 13018081. The reversal of 13018056 is 65081031.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is not an unprimeable number, because it can be changed into a prime (13018051) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 15546 + ... + 16361.
It is an arithmetic number, because the mean of its divisors is an integer number (1076895).
Almost surely, 213018056 is an apocalyptic number.
It is an amenable number.
13018056 is an abundant number, since it is smaller than the sum of its proper divisors (21442584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13018056 is a wasteful number, since it uses less digits than its factorization.
13018056 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31933 (or 31929 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 24.
The square root of 13018056 is about 3608.0543233161. The cubic root of 13018056 is about 235.2422791782.
Adding to 13018056 its reverse (65081031), we get a palindrome (78099087).
The spelling of 13018056 in words is "thirteen million, eighteen thousand, fifty-six".
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