Base | Representation |
---|---|
bin | 11000010000001000… |
… | …01000010000101111 |
3 | 1020121101210210102212 |
4 | 30020010020100233 |
5 | 203131132431111 |
6 | 5551552041035 |
7 | 640436614454 |
oct | 141004102057 |
9 | 36541723385 |
10 | 13020202031 |
11 | 5581623551 |
12 | 263453317b |
13 | 12c6626075 |
14 | 8b730782b |
15 | 5130e298b |
hex | 30810842f |
13020202031 has 2 divisors, whose sum is σ = 13020202032. Its totient is φ = 13020202030.
The previous prime is 13020202021. The next prime is 13020202073.
It is a happy number.
13020202031 is nontrivially palindromic in base 10.
It is a weak prime.
It is a palprime.
It is a cyclic number.
It is not a de Polignac number, because 13020202031 - 26 = 13020201967 is a prime.
It is a super-2 number, since 2×130202020312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13020201997 and 13020202015.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13020202001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510101015 + 6510101016.
It is an arithmetic number, because the mean of its divisors is an integer number (6510101016).
Almost surely, 213020202031 is an apocalyptic number.
13020202031 is a deficient number, since it is larger than the sum of its proper divisors (1).
13020202031 is an equidigital number, since it uses as much as digits as its factorization.
13020202031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 72, while the sum is 14.
The spelling of 13020202031 in words is "thirteen billion, twenty million, two hundred two thousand, thirty-one".
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