Base | Representation |
---|---|
bin | 110010000011… |
… | …110101001101 |
3 | 220200201020002 |
4 | 302003311031 |
5 | 11324413033 |
6 | 1145134045 |
7 | 216354110 |
oct | 62036515 |
9 | 26621202 |
10 | 13122893 |
11 | 7453473 |
12 | 448a325 |
13 | 2946134 |
14 | 1a58577 |
15 | 12433e8 |
hex | c83d4d |
13122893 has 4 divisors (see below), whose sum is σ = 14997600. Its totient is φ = 11248188.
The previous prime is 13122887. The next prime is 13122919. The reversal of 13122893 is 39822131.
13122893 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39822131 = 23 ⋅1731397.
It is not a de Polignac number, because 13122893 - 220 = 12074317 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13122493) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937343 + ... + 937356.
It is an arithmetic number, because the mean of its divisors is an integer number (3749400).
Almost surely, 213122893 is an apocalyptic number.
It is an amenable number.
13122893 is a deficient number, since it is larger than the sum of its proper divisors (1874707).
13122893 is an equidigital number, since it uses as much as digits as its factorization.
13122893 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1874706.
The product of its digits is 2592, while the sum is 29.
The square root of 13122893 is about 3622.5533812492. The cubic root of 13122893 is about 235.8720758880.
The spelling of 13122893 in words is "thirteen million, one hundred twenty-two thousand, eight hundred ninety-three".
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