Base | Representation |
---|---|
bin | 11000011010000000… |
… | …10111101110101011 |
3 | 1020211011210121001002 |
4 | 30031000113232223 |
5 | 203313343243031 |
6 | 10004112545215 |
7 | 642464352104 |
oct | 141500275653 |
9 | 36734717032 |
10 | 13103102891 |
11 | 56143a615a |
12 | 265825220b |
13 | 130a860928 |
14 | 8c43273ab |
15 | 51a51accb |
hex | 30d017bab |
13103102891 has 4 divisors (see below), whose sum is σ = 13106819400. Its totient is φ = 13099386384.
The previous prime is 13103102879. The next prime is 13103102893. The reversal of 13103102891 is 19820130131.
13103102891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19820130131 = 59 ⋅335934409.
It is a cyclic number.
It is not a de Polignac number, because 13103102891 - 26 = 13103102827 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13103102893) by changing a digit.
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, 1852961 + ... + 1860018.
It is an arithmetic number, because the mean of its divisors is an integer number (3276704850).
Almost surely, 213103102891 is an apocalyptic number.
13103102891 is a deficient number, since it is larger than the sum of its proper divisors (3716509).
13103102891 is an equidigital number, since it uses as much as digits as its factorization.
13103102891 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3716508.
The product of its (nonzero) digits is 1296, while the sum is 29.
The spelling of 13103102891 in words is "thirteen billion, one hundred three million, one hundred two thousand, eight hundred ninety-one".
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