Base | Representation |
---|---|
bin | 110010100001… |
… | …000100100100 |
3 | 220220210111220 |
4 | 302201010210 |
5 | 11342231120 |
6 | 1151500340 |
7 | 220363224 |
oct | 62410444 |
9 | 26823456 |
10 | 13242660 |
11 | 7525452 |
12 | 45276b0 |
13 | 29887c2 |
14 | 1a8a084 |
15 | 1268b40 |
hex | ca1124 |
13242660 has 48 divisors (see below), whose sum is σ = 39263616. Its totient is φ = 3323392.
The previous prime is 13242637. The next prime is 13242661. The reversal of 13242660 is 6624231.
It is a self number, because there is not a number n which added to its sum of digits gives 13242660.
It is not an unprimeable number, because it can be changed into a prime (13242661) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5472 + ... + 7511.
It is an arithmetic number, because the mean of its divisors is an integer number (817992).
Almost surely, 213242660 is an apocalyptic number.
13242660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13242660 is an abundant number, since it is smaller than the sum of its proper divisors (26020956).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13242660 is a wasteful number, since it uses less digits than its factorization.
13242660 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13012 (or 13010 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 24.
The square root of 13242660 is about 3639.0465784323. The cubic root of 13242660 is about 236.5874715735.
Adding to 13242660 its reverse (6624231), we get a palindrome (19866891).
The spelling of 13242660 in words is "thirteen million, two hundred forty-two thousand, six hundred sixty".
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