Base | Representation |
---|---|
bin | 11000100111001001… |
… | …10011000100011011 |
3 | 1021002212011222010012 |
4 | 30103210303010123 |
5 | 204030102042410 |
6 | 10023051112135 |
7 | 645303220202 |
oct | 142344630433 |
9 | 37085158105 |
10 | 13213315355 |
11 | 5670632439 |
12 | 268914264b |
13 | 132763b8c6 |
14 | 8d4c16239 |
15 | 52503b605 |
hex | 31393311b |
13213315355 has 4 divisors (see below), whose sum is σ = 15855978432. Its totient is φ = 10570652280.
The previous prime is 13213315351. The next prime is 13213315363. The reversal of 13213315355 is 55351331231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55351331231 = 7 ⋅7907333033.
It is not a de Polignac number, because 13213315355 - 22 = 13213315351 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13213315351) 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, 1321331531 + ... + 1321331540.
It is an arithmetic number, because the mean of its divisors is an integer number (3963994608).
Almost surely, 213213315355 is an apocalyptic number.
13213315355 is a deficient number, since it is larger than the sum of its proper divisors (2642663077).
13213315355 is an equidigital number, since it uses as much as digits as its factorization.
13213315355 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2642663076.
The product of its digits is 20250, while the sum is 32.
Adding to 13213315355 its reverse (55351331231), we get a palindrome (68564646586).
The spelling of 13213315355 in words is "thirteen billion, two hundred thirteen million, three hundred fifteen thousand, three hundred fifty-five".
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