Base | Representation |
---|---|
bin | 110010000001… |
… | …011000100100 |
3 | 220200012110210 |
4 | 302001120210 |
5 | 11324102433 |
6 | 1145015420 |
7 | 216312636 |
oct | 62013044 |
9 | 26605423 |
10 | 13112868 |
11 | 744698a |
12 | 4484570 |
13 | 29416c2 |
14 | 1a54a56 |
15 | 1240463 |
hex | c81624 |
13112868 has 24 divisors (see below), whose sum is σ = 31116960. Its totient is φ = 4296640.
The previous prime is 13112867. The next prime is 13112909. The reversal of 13112868 is 86821131.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13112867) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8553 + ... + 9968.
It is an arithmetic number, because the mean of its divisors is an integer number (1296540).
Almost surely, 213112868 is an apocalyptic number.
It is an amenable number.
13112868 is an abundant number, since it is smaller than the sum of its proper divisors (18004092).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13112868 is a wasteful number, since it uses less digits than its factorization.
13112868 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18587 (or 18585 counting only the distinct ones).
The product of its digits is 2304, while the sum is 30.
The square root of 13112868 is about 3621.1694243711. The cubic root of 13112868 is about 235.8119971652.
Adding to 13112868 its reverse (86821131), we get a palindrome (99933999).
The spelling of 13112868 in words is "thirteen million, one hundred twelve thousand, eight hundred sixty-eight".
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