Base | Representation |
---|---|
bin | 11100001000101111… |
… | …010110111010011100 |
3 | 2212222111002022100102 |
4 | 130020233112322130 |
5 | 443333104402140 |
6 | 21513503120232 |
7 | 2116444456232 |
oct | 341057267234 |
9 | 85874068312 |
10 | 30211403420 |
11 | 118a3605600 |
12 | 5a318a3078 |
13 | 2b06112993 |
14 | 1668558952 |
15 | bbc486e15 |
hex | 708bd6e9c |
30211403420 has 36 divisors (see below), whose sum is σ = 69735914472. Its totient is φ = 10985964000.
The previous prime is 30211403413. The next prime is 30211403437. The reversal of 30211403420 is 2430411203.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 30211403392 and 30211403401.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6239606 + ... + 6244445.
Almost surely, 230211403420 is an apocalyptic number.
It is an amenable number.
30211403420 is an abundant number, since it is smaller than the sum of its proper divisors (39524511052).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30211403420 is a wasteful number, since it uses less digits than its factorization.
30211403420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12484082 (or 12484069 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 20.
Adding to 30211403420 its reverse (2430411203), we get a palindrome (32641814623).
The spelling of 30211403420 in words is "thirty billion, two hundred eleven million, four hundred three thousand, four hundred twenty".
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