Base | Representation |
---|---|
bin | 10010111010101101… |
… | …101111011110111010 |
3 | 1221102121101222010011 |
4 | 102322231233132322 |
5 | 313044440003310 |
6 | 13155325412134 |
7 | 1316234512114 |
oct | 227255573672 |
9 | 57377358104 |
10 | 20312422330 |
11 | 86839185a2 |
12 | 3b2a70a04a |
13 | 1bb9334a15 |
14 | da99b03b4 |
15 | 7dd3d078a |
hex | 4bab6f7ba |
20312422330 has 64 divisors (see below), whose sum is σ = 38848942080. Its totient is φ = 7635513600.
The previous prime is 20312422313. The next prime is 20312422337. The reversal of 20312422330 is 3322421302.
It is not an unprimeable number, because it can be changed into a prime (20312422337) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1487092 + ... + 1500688.
It is an arithmetic number, because the mean of its divisors is an integer number (607014720).
Almost surely, 220312422330 is an apocalyptic number.
20312422330 is a deficient number, since it is larger than the sum of its proper divisors (18536519750).
20312422330 is a wasteful number, since it uses less digits than its factorization.
20312422330 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13775.
The product of its (nonzero) digits is 1728, while the sum is 22.
Adding to 20312422330 its reverse (3322421302), we get a palindrome (23634843632).
The spelling of 20312422330 in words is "twenty billion, three hundred twelve million, four hundred twenty-two thousand, three hundred thirty".
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