Base | Representation |
---|---|
bin | 111001110011… |
… | …0000000001111 |
3 | 2010000111211120 |
4 | 1303212000033 |
5 | 30224132343 |
6 | 3001252023 |
7 | 515364450 |
oct | 163460017 |
9 | 63014746 |
10 | 30302223 |
11 | 16117566 |
12 | a194013 |
13 | 637c713 |
14 | 404b127 |
15 | 29d8683 |
hex | 1ce600f |
30302223 has 32 divisors (see below), whose sum is σ = 48299520. Its totient is φ = 16536960.
The previous prime is 30302219. The next prime is 30302249. The reversal of 30302223 is 32220303.
It is not a de Polignac number, because 30302223 - 22 = 30302219 is a prime.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30302203) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45513 + ... + 46173.
It is an arithmetic number, because the mean of its divisors is an integer number (1509360).
Almost surely, 230302223 is an apocalyptic number.
30302223 is a deficient number, since it is larger than the sum of its proper divisors (17997297).
30302223 is a wasteful number, since it uses less digits than its factorization.
30302223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 767.
The product of its (nonzero) digits is 216, while the sum is 15.
The square root of 30302223 is about 5504.7454982043. The cubic root of 30302223 is about 311.7631852717.
Adding to 30302223 its reverse (32220303), we get a palindrome (62522526).
It can be divided in two parts, 3030 and 2223, that added together give a triangular number (5253 = T102).
The spelling of 30302223 in words is "thirty million, three hundred two thousand, two hundred twenty-three".
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