Base | Representation |
---|---|
bin | 11100001001011101… |
… | …000111110001010100 |
3 | 2220000022122210120221 |
4 | 130021131013301110 |
5 | 443344142300040 |
6 | 21515012204124 |
7 | 2116651442602 |
oct | 341135076124 |
9 | 86008583527 |
10 | 30223400020 |
11 | 118aa359850 |
12 | 5a35909644 |
13 | 2b08753268 |
14 | 1669d9c872 |
15 | bbd55674a |
hex | 709747c54 |
30223400020 has 48 divisors (see below), whose sum is σ = 73311956928. Its totient is φ = 10343836160.
The previous prime is 30223399993. The next prime is 30223400063. The reversal of 30223400020 is 2000432203.
It is a junction number, because it is equal to n+sod(n) for n = 30223399967 and 30223400003.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 4036822 + ... + 4044301.
It is an arithmetic number, because the mean of its divisors is an integer number (1527332436).
Almost surely, 230223400020 is an apocalyptic number.
It is an amenable number.
30223400020 is an abundant number, since it is smaller than the sum of its proper divisors (43088556908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30223400020 is a wasteful number, since it uses less digits than its factorization.
30223400020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8081160 (or 8081158 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 16.
Adding to 30223400020 its reverse (2000432203), we get a palindrome (32223832223).
The spelling of 30223400020 in words is "thirty billion, two hundred twenty-three million, four hundred thousand, twenty".
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