Base | Representation |
---|---|
bin | 11000101000110011… |
… | …10001001101111101 |
3 | 1021010211022110012100 |
4 | 30110121301031331 |
5 | 204042130421110 |
6 | 10024304455313 |
7 | 645532233255 |
oct | 142431611575 |
9 | 37124273170 |
10 | 13227201405 |
11 | 5678457210 |
12 | 269191a539 |
13 | 132a4911c2 |
14 | 8d69cc965 |
15 | 526380bc0 |
hex | 31467137d |
13227201405 has 96 divisors (see below), whose sum is σ = 26940925440. Its totient is φ = 5934176640.
The previous prime is 13227201401. The next prime is 13227201431. The reversal of 13227201405 is 50410272231.
13227201405 is a `hidden beast` number, since 1 + 32 + 27 + 201 + 405 = 666.
It is not a de Polignac number, because 13227201405 - 22 = 13227201401 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13227201401) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 388062 + ... + 420768.
It is an arithmetic number, because the mean of its divisors is an integer number (280634640).
Almost surely, 213227201405 is an apocalyptic number.
13227201405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13227201405 is an abundant number, since it is smaller than the sum of its proper divisors (13713724035).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13227201405 is a wasteful number, since it uses less digits than its factorization.
13227201405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32791 (or 32788 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 27.
Adding to 13227201405 its reverse (50410272231), we get a palindrome (63637473636).
The spelling of 13227201405 in words is "thirteen billion, two hundred twenty-seven million, two hundred one thousand, four hundred five".
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