Base | Representation |
---|---|
bin | 11100001110101011… |
… | …010101011010110110 |
3 | 2220020102111221122220 |
4 | 130032223111122312 |
5 | 444034104341042 |
6 | 21531422103210 |
7 | 2122064231304 |
oct | 341653253266 |
9 | 86212457586 |
10 | 30311012022 |
11 | 11944859a65 |
12 | 5a5b11ab06 |
13 | 2b2094a295 |
14 | 1677887274 |
15 | bc60b08ec |
hex | 70ead56b6 |
30311012022 has 64 divisors (see below), whose sum is σ = 61742628864. Its totient is φ = 9919203840.
The previous prime is 30311012009. The next prime is 30311012059. The reversal of 30311012022 is 22021011303.
It is a junction number, because it is equal to n+sod(n) for n = 30311011992 and 30311012010.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39830122 + ... + 39830882.
It is an arithmetic number, because the mean of its divisors is an integer number (964728576).
Almost surely, 230311012022 is an apocalyptic number.
30311012022 is an abundant number, since it is smaller than the sum of its proper divisors (31431616842).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30311012022 is a wasteful number, since it uses less digits than its factorization.
30311012022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1373.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 30311012022 its reverse (22021011303), we get a palindrome (52332023325).
The spelling of 30311012022 in words is "thirty billion, three hundred eleven million, twelve thousand, twenty-two".
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