Base | Representation |
---|---|
bin | 110001111111… |
… | …011111111000 |
3 | 220122210212201 |
4 | 301333133320 |
5 | 11323331034 |
6 | 1144515544 |
7 | 216251263 |
oct | 61773770 |
9 | 26583781 |
10 | 13105144 |
11 | 74410a8 |
12 | 447bbb4 |
13 | 293b030 |
14 | 1a51cda |
15 | 123d014 |
hex | c7f7f8 |
13105144 has 16 divisors (see below), whose sum is σ = 26462520. Its totient is φ = 6048480.
The previous prime is 13105123. The next prime is 13105159. The reversal of 13105144 is 44150131.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62902 + ... + 63109.
Almost surely, 213105144 is an apocalyptic number.
It is an amenable number.
13105144 is an abundant number, since it is smaller than the sum of its proper divisors (13357376).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13105144 is a wasteful number, since it uses less digits than its factorization.
13105144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 126030 (or 126026 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 13105144 is about 3620.1027609724. The cubic root of 13105144 is about 235.7656871942.
Adding to 13105144 its reverse (44150131), we get a palindrome (57255275).
The spelling of 13105144 in words is "thirteen million, one hundred five thousand, one hundred forty-four".
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