Base | Representation |
---|---|
bin | 111001100110… |
… | …1010110000110 |
3 | 2002211101021210 |
4 | 1303031112012 |
5 | 30212414342 |
6 | 2555152250 |
7 | 514464132 |
oct | 163152606 |
9 | 62741253 |
10 | 30201222 |
11 | 16058697 |
12 | a145686 |
13 | 634575c |
14 | 40223c2 |
15 | 29b879c |
hex | 1ccd586 |
30201222 has 64 divisors (see below), whose sum is σ = 66781440. Its totient is φ = 9072000.
The previous prime is 30201221. The next prime is 30201229. The reversal of 30201222 is 22210203.
It is a super-2 number, since 2×302012222 = 1824227620586568, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30201198 and 30201207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30201221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298972 + ... + 299072.
It is an arithmetic number, because the mean of its divisors is an integer number (1043460).
Almost surely, 230201222 is an apocalyptic number.
30201222 is an abundant number, since it is smaller than the sum of its proper divisors (36580218).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30201222 is a wasteful number, since it uses less digits than its factorization.
30201222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 229.
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 30201222 is about 5495.5638473227. The cubic root of 30201222 is about 311.4164181573.
Adding to 30201222 its reverse (22210203), we get a palindrome (52411425).
The spelling of 30201222 in words is "thirty million, two hundred one thousand, two hundred twenty-two".
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