Base | Representation |
---|---|
bin | 11100001000110101… |
… | …100100000101001100 |
3 | 2212222121010221220021 |
4 | 130020311210011030 |
5 | 443334013431340 |
6 | 21514002031524 |
7 | 2116464343132 |
oct | 341065440514 |
9 | 85877127807 |
10 | 30213030220 |
11 | 118a451686a |
12 | 5a323485a4 |
13 | 2b06562299 |
14 | 166885d752 |
15 | bbc6a8e4a |
hex | 708d6414c |
30213030220 has 24 divisors (see below), whose sum is σ = 63452366208. Its totient is φ = 12084259200.
The previous prime is 30213030209. The next prime is 30213030223. The reversal of 30213030220 is 2203031203.
It is a junction number, because it is equal to n+sod(n) for n = 30213030194 and 30213030203.
It is not an unprimeable number, because it can be changed into a prime (30213030223) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236280 + ... + 340960.
It is an arithmetic number, because the mean of its divisors is an integer number (2643848592).
Almost surely, 230213030220 is an apocalyptic number.
It is an amenable number.
30213030220 is an abundant number, since it is smaller than the sum of its proper divisors (33239335988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30213030220 is a wasteful number, since it uses less digits than its factorization.
30213030220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 119121 (or 119119 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 16.
Adding to 30213030220 its reverse (2203031203), we get a palindrome (32416061423).
The spelling of 30213030220 in words is "thirty billion, two hundred thirteen million, thirty thousand, two hundred twenty".
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