Base | Representation |
---|---|
bin | 110001101001… |
… | …111010101001 |
3 | 220111022121200 |
4 | 301221322221 |
5 | 11313013440 |
6 | 1142554413 |
7 | 215432460 |
oct | 61517251 |
9 | 26438550 |
10 | 13016745 |
11 | 7390745 |
12 | 4438a09 |
13 | 2909a21 |
14 | 1a2b9d7 |
15 | 1221c30 |
hex | c69ea9 |
13016745 has 72 divisors (see below), whose sum is σ = 27263808. Its totient is φ = 5624640.
The previous prime is 13016743. The next prime is 13016749. The reversal of 13016745 is 54761031.
It is not a de Polignac number, because 13016745 - 21 = 13016743 is a prime.
It is not an unprimeable number, because it can be changed into a prime (13016741) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 302694 + ... + 302736.
It is an arithmetic number, because the mean of its divisors is an integer number (378664).
Almost surely, 213016745 is an apocalyptic number.
13016745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13016745 is an abundant number, since it is smaller than the sum of its proper divisors (14247063).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13016745 is a wasteful number, since it uses less digits than its factorization.
13016745 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 123 (or 89 counting only the distinct ones).
The product of its (nonzero) digits is 2520, while the sum is 27.
The square root of 13016745 is about 3607.8726418764. The cubic root of 13016745 is about 235.2343821214.
Adding to 13016745 its reverse (54761031), we get a palindrome (67777776).
The spelling of 13016745 in words is "thirteen million, sixteen thousand, seven hundred forty-five".
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