Base | Representation |
---|---|
bin | 11000100110110010… |
… | …11010011110010111 |
3 | 1021002122120100101200 |
4 | 30103121122132113 |
5 | 204023321043111 |
6 | 10022503123543 |
7 | 645235650432 |
oct | 142331323627 |
9 | 37078510350 |
10 | 13210331031 |
11 | 5669984257 |
12 | 26881435b3 |
13 | 1326b35431 |
14 | 8d467a819 |
15 | 524b4c256 |
hex | 31365a797 |
13210331031 has 24 divisors (see below), whose sum is σ = 19511331840. Its totient is φ = 8609001936.
The previous prime is 13210331011. The next prime is 13210331059. The reversal of 13210331031 is 13013301231.
It is a happy number.
13210331031 is a `hidden beast` number, since 1 + 321 + 0 + 3 + 310 + 31 = 666.
It is not a de Polignac number, because 13210331031 - 25 = 13210330999 is a prime.
It is a super-2 number, since 2×132103310312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13210330995 and 13210331013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13210331011) 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 23 ways as a sum of consecutive naturals, for example, 336286 + ... + 373508.
It is an arithmetic number, because the mean of its divisors is an integer number (812972160).
Almost surely, 213210331031 is an apocalyptic number.
13210331031 is a deficient number, since it is larger than the sum of its proper divisors (6301000809).
13210331031 is a wasteful number, since it uses less digits than its factorization.
13210331031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38115 (or 38112 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 13210331031 its reverse (13013301231), we get a palindrome (26223632262).
The spelling of 13210331031 in words is "thirteen billion, two hundred ten million, three hundred thirty-one thousand, thirty-one".
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