Base | Representation |
---|---|
bin | 1001001111000110101101… |
… | …10111110100011000111100 |
3 | 2122220122012110221011002110 |
4 | 10213203112313310120330 |
5 | 10130230302321112340 |
6 | 111110214250054020 |
7 | 4164235642235544 |
oct | 447432667643074 |
9 | 78818173834073 |
10 | 20310210332220 |
11 | 652056a279026 |
12 | 234030841a310 |
13 | b44324563c33 |
14 | 50303b434324 |
15 | 2534adaed680 |
hex | 1278d6df463c |
20310210332220 has 96 divisors (see below), whose sum is σ = 59465023672320. Its totient is φ = 5169759823360.
The previous prime is 20310210332213. The next prime is 20310210332221. The reversal of 20310210332220 is 2223301201302.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20310210332221) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14701761 + ... + 16023800.
It is an arithmetic number, because the mean of its divisors is an integer number (619427329920).
Almost surely, 220310210332220 is an apocalyptic number.
20310210332220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20310210332220 is an abundant number, since it is smaller than the sum of its proper divisors (39154813340100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20310210332220 is a wasteful number, since it uses less digits than its factorization.
20310210332220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30726075 (or 30726073 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 21.
Adding to 20310210332220 its reverse (2223301201302), we get a palindrome (22533511533522).
The spelling of 20310210332220 in words is "twenty trillion, three hundred ten billion, two hundred ten million, three hundred thirty-two thousand, two hundred twenty".
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