Base | Representation |
---|---|
bin | 11000101001010000… |
… | …10111111101010111 |
3 | 1021011002111222011222 |
4 | 30110220113331113 |
5 | 204044120430403 |
6 | 10024522520555 |
7 | 645606620534 |
oct | 142450277527 |
9 | 37132458158 |
10 | 13231030103 |
11 | 567a631825 |
12 | 269306615b |
13 | 132b201ac5 |
14 | 8d7307d8b |
15 | 52688a338 |
hex | 314a17f57 |
13231030103 has 4 divisors (see below), whose sum is σ = 13231521768. Its totient is φ = 13230538440.
The previous prime is 13231030097. The next prime is 13231030123. The reversal of 13231030103 is 30103013231.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13231030103 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 (13231030123) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202976 + ... + 260117.
It is an arithmetic number, because the mean of its divisors is an integer number (3307880442).
Almost surely, 213231030103 is an apocalyptic number.
13231030103 is a deficient number, since it is larger than the sum of its proper divisors (491665).
13231030103 is an equidigital number, since it uses as much as digits as its factorization.
13231030103 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 491664.
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 13231030103 its reverse (30103013231), we get a palindrome (43334043334).
The spelling of 13231030103 in words is "thirteen billion, two hundred thirty-one million, thirty thousand, one hundred three".
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