Base | Representation |
---|---|
bin | 11100000010001110… |
… | …111001010011001101 |
3 | 2212200212122201212121 |
4 | 130002032321103031 |
5 | 443122132331341 |
6 | 21455003132541 |
7 | 2113650510100 |
oct | 340216712315 |
9 | 85625581777 |
10 | 30102230221 |
11 | 11847a19118 |
12 | 5a01214151 |
13 | 2ab9609a5b |
14 | 1657c5a737 |
15 | bb2abe4d1 |
hex | 7023b94cd |
30102230221 has 24 divisors (see below), whose sum is σ = 35204932800. Its totient is φ = 25663744512.
The previous prime is 30102230209. The next prime is 30102230239. The reversal of 30102230221 is 12203220103.
It is not a de Polignac number, because 30102230221 - 25 = 30102230189 is a prime.
It is a super-2 number, since 2×301022302212 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30102230195 and 30102230204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30102230251) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 7632376 + ... + 7636318.
It is an arithmetic number, because the mean of its divisors is an integer number (1466872200).
Almost surely, 230102230221 is an apocalyptic number.
It is an amenable number.
30102230221 is a deficient number, since it is larger than the sum of its proper divisors (5102702579).
30102230221 is a wasteful number, since it uses less digits than its factorization.
30102230221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4753 (or 4746 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 30102230221 its reverse (12203220103), we get a palindrome (42305450324).
The spelling of 30102230221 in words is "thirty billion, one hundred two million, two hundred thirty thousand, two hundred twenty-one".
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