Base | Representation |
---|---|
bin | 110011000011… |
… | …101000110011 |
3 | 221011222201201 |
4 | 303003220303 |
5 | 11411243433 |
6 | 1154512031 |
7 | 221523055 |
oct | 63035063 |
9 | 27158651 |
10 | 13384243 |
11 | 7611864 |
12 | 4595617 |
13 | 2a08092 |
14 | 1ac58d5 |
15 | 1295a7d |
hex | cc3a33 |
13384243 has 4 divisors (see below), whose sum is σ = 13392288. Its totient is φ = 13376200.
The previous prime is 13384211. The next prime is 13384271. The reversal of 13384243 is 34248331.
13384243 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 brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34248331 = 13 ⋅2634487.
It is a cyclic number.
It is not a de Polignac number, because 13384243 - 25 = 13384211 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13384843) 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, 496 + ... + 5197.
It is an arithmetic number, because the mean of its divisors is an integer number (3348072).
Almost surely, 213384243 is an apocalyptic number.
13384243 is a deficient number, since it is larger than the sum of its proper divisors (8045).
13384243 is an equidigital number, since it uses as much as digits as its factorization.
13384243 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8044.
The product of its digits is 6912, while the sum is 28.
The square root of 13384243 is about 3658.4481682812. The cubic root of 13384243 is about 237.4276374189.
Subtracting from 13384243 its product of digits (6912), we obtain a palindrome (13377331).
The spelling of 13384243 in words is "thirteen million, three hundred eighty-four thousand, two hundred forty-three".
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