Base | Representation |
---|---|
bin | 111001010001… |
… | …1100110001110 |
3 | 2002111200201110 |
4 | 1302203212032 |
5 | 30141431342 |
6 | 2551352450 |
7 | 513152445 |
oct | 162434616 |
9 | 62450643 |
10 | 30030222 |
11 | 15a51172 |
12 | a082726 |
13 | 62b5981 |
14 | 3db9d5c |
15 | 2982c9c |
hex | 1ca398e |
30030222 has 16 divisors (see below), whose sum is σ = 63221760. Its totient is φ = 9483192.
The previous prime is 30030181. The next prime is 30030269. The reversal of 30030222 is 22203003.
It is a junction number, because it is equal to n+sod(n) for n = 30030198 and 30030207.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 131598 + ... + 131825.
It is an arithmetic number, because the mean of its divisors is an integer number (3951360).
Almost surely, 230030222 is an apocalyptic number.
30030222 is an abundant number, since it is smaller than the sum of its proper divisors (33191538).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30030222 is a wasteful number, since it uses less digits than its factorization.
30030222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 263447.
The product of its (nonzero) digits is 72, while the sum is 12.
The square root of 30030222 is about 5479.9837591000. The cubic root of 30030222 is about 310.8275564449.
Adding to 30030222 its reverse (22203003), we get a palindrome (52233225).
The spelling of 30030222 in words is "thirty million, thirty thousand, two hundred twenty-two".
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