Base | Representation |
---|---|
bin | 10010101001111100… |
… | …010100101111101111 |
3 | 1220200222220212120022 |
4 | 102221330110233233 |
5 | 312010421013203 |
6 | 13111354312355 |
7 | 1306246652042 |
oct | 225174245757 |
9 | 56628825508 |
10 | 20031032303 |
11 | 8549aa5057 |
12 | 3a704286bb |
13 | 1b72c51749 |
14 | d80482c59 |
15 | 7c384aa38 |
hex | 4a9f14bef |
20031032303 has 4 divisors (see below), whose sum is σ = 20077508448. Its totient is φ = 19984556160.
The previous prime is 20031032297. The next prime is 20031032341. The reversal of 20031032303 is 30323013002.
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 20031032303 - 214 = 20031015919 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 (20031032383) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23237426 + ... + 23238287.
It is an arithmetic number, because the mean of its divisors is an integer number (5019377112).
Almost surely, 220031032303 is an apocalyptic number.
20031032303 is a deficient number, since it is larger than the sum of its proper divisors (46476145).
20031032303 is an equidigital number, since it uses as much as digits as its factorization.
20031032303 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46476144.
The product of its (nonzero) digits is 324, while the sum is 17.
Adding to 20031032303 its reverse (30323013002), we get a palindrome (50354045305).
The spelling of 20031032303 in words is "twenty billion, thirty-one million, thirty-two thousand, three hundred three".
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