Base | Representation |
---|---|
bin | 10010101001111100… |
… | …010010100011000111 |
3 | 1220200222220102012222 |
4 | 102221330102203013 |
5 | 312010420221203 |
6 | 13111354202555 |
7 | 1306246613564 |
oct | 225174224307 |
9 | 56628812188 |
10 | 20031023303 |
11 | 8549a99315 |
12 | 3a7042345b |
13 | 1b72c4a615 |
14 | d8047d86b |
15 | 7c3848038 |
hex | 4a9f128c7 |
20031023303 has 8 divisors (see below), whose sum is σ = 20289864000. Its totient is φ = 19772314848.
The previous prime is 20031023251. The next prime is 20031023323. The reversal of 20031023303 is 30332013002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20031023303 - 216 = 20030957767 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 (20031023323) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292373 + ... + 354321.
It is an arithmetic number, because the mean of its divisors is an integer number (2536233000).
Almost surely, 220031023303 is an apocalyptic number.
20031023303 is a deficient number, since it is larger than the sum of its proper divisors (258840697).
20031023303 is an equidigital number, since it uses as much as digits as its factorization.
20031023303 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66121.
The product of its (nonzero) digits is 324, while the sum is 17.
Adding to 20031023303 its reverse (30332013002), we get a palindrome (50363036305).
The spelling of 20031023303 in words is "twenty billion, thirty-one million, twenty-three thousand, three hundred three".
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