Base | Representation |
---|---|
bin | 11001011001110011… |
… | …00010111101101101 |
3 | 1022012110122120110001 |
4 | 30230321202331231 |
5 | 210412333403223 |
6 | 10133145344301 |
7 | 661652441521 |
oct | 145471427555 |
9 | 38173576401 |
10 | 13638184813 |
11 | 5869444120 |
12 | 2787498091 |
13 | 1394679b56 |
14 | 935411d81 |
15 | 54c4b39ad |
hex | 32ce62f6d |
13638184813 has 8 divisors (see below), whose sum is σ = 15009685056. Its totient is φ = 12288628800.
The previous prime is 13638184787. The next prime is 13638184831. The reversal of 13638184813 is 31848183631.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13638184813 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 (13638184013) 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, 5484753 + ... + 5487238.
It is an arithmetic number, because the mean of its divisors is an integer number (1876210632).
Almost surely, 213638184813 is an apocalyptic number.
It is an amenable number.
13638184813 is a deficient number, since it is larger than the sum of its proper divisors (1371500243).
13638184813 is a wasteful number, since it uses less digits than its factorization.
13638184813 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10972115.
The product of its digits is 331776, while the sum is 46.
It can be divided in two parts, 1363818 and 4813, that added together give a palindrome (1368631).
The spelling of 13638184813 in words is "thirteen billion, six hundred thirty-eight million, one hundred eighty-four thousand, eight hundred thirteen".
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