Base | Representation |
---|---|
bin | 11000100111000111… |
… | …10011010111000101 |
3 | 1021002211200201011101 |
4 | 30103203303113011 |
5 | 204030020220110 |
6 | 10023041340101 |
7 | 645301052335 |
oct | 142343632705 |
9 | 37084621141 |
10 | 13213054405 |
11 | 5670474381 |
12 | 2689037631 |
13 | 1327579bb5 |
14 | 8d4b890c5 |
15 | 524ed913a |
hex | 3138f35c5 |
13213054405 has 16 divisors (see below), whose sum is σ = 16368010560. Its totient is φ = 10233232128.
The previous prime is 13213054403. The next prime is 13213054409. The reversal of 13213054405 is 50445031231.
It is a cyclic number.
It is not a de Polignac number, because 13213054405 - 21 = 13213054403 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13213054403) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247635 + ... + 296224.
It is an arithmetic number, because the mean of its divisors is an integer number (1023000660).
Almost surely, 213213054405 is an apocalyptic number.
It is an amenable number.
13213054405 is a deficient number, since it is larger than the sum of its proper divisors (3154956155).
13213054405 is a wasteful number, since it uses less digits than its factorization.
13213054405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 544020.
The product of its (nonzero) digits is 7200, while the sum is 28.
Adding to 13213054405 its reverse (50445031231), we get a palindrome (63658085636).
The spelling of 13213054405 in words is "thirteen billion, two hundred thirteen million, fifty-four thousand, four hundred five".
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