Base | Representation |
---|---|
bin | 11000110011000011… |
… | …10101101101010111 |
3 | 1021100211010210020202 |
4 | 30121201311231113 |
5 | 204231134444111 |
6 | 10041020051115 |
7 | 650625234002 |
oct | 143141655527 |
9 | 37324123222 |
10 | 13313203031 |
11 | 5711a57537 |
12 | 26b6693a9b |
13 | 134224323b |
14 | 9041b8539 |
15 | 52dbbcb3b |
hex | 319875b57 |
13313203031 has 4 divisors (see below), whose sum is σ = 13538850600. Its totient is φ = 13087555464.
The previous prime is 13313202949. The next prime is 13313203037. The reversal of 13313203031 is 13030231331.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 13313203031 - 230 = 12239461207 is a prime.
It is a super-2 number, since 2×133132030312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13313202994 and 13313203012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13313203037) 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, 112823696 + ... + 112823813.
It is an arithmetic number, because the mean of its divisors is an integer number (3384712650).
Almost surely, 213313203031 is an apocalyptic number.
13313203031 is a deficient number, since it is larger than the sum of its proper divisors (225647569).
13313203031 is an equidigital number, since it uses as much as digits as its factorization.
13313203031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 225647568.
The product of its (nonzero) digits is 486, while the sum is 20.
Adding to 13313203031 its reverse (13030231331), we get a palindrome (26343434362).
The spelling of 13313203031 in words is "thirteen billion, three hundred thirteen million, two hundred three thousand, thirty-one".
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