Base | Representation |
---|---|
bin | 111001110010… |
… | …1100001000111 |
3 | 2010000102002210 |
4 | 1303211201013 |
5 | 30224101411 |
6 | 3001234503 |
7 | 515355603 |
oct | 163454107 |
9 | 63012083 |
10 | 30300231 |
11 | 16116015 |
12 | a192a33 |
13 | 637b840 |
14 | 404a503 |
15 | 29d7ca6 |
hex | 1ce5847 |
30300231 has 32 divisors (see below), whose sum is σ = 46359040. Its totient is φ = 17449344.
The previous prime is 30300211. The next prime is 30300241. The reversal of 30300231 is 13200303.
It is a happy number.
It is not a de Polignac number, because 30300231 - 26 = 30300167 is a prime.
It is a super-2 number, since 2×303002312 = 1836207997306722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30300211) 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, 76125 + ... + 76521.
It is an arithmetic number, because the mean of its divisors is an integer number (1448720).
Almost surely, 230300231 is an apocalyptic number.
30300231 is a deficient number, since it is larger than the sum of its proper divisors (16058809).
30300231 is a wasteful number, since it uses less digits than its factorization.
30300231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 535.
The product of its (nonzero) digits is 54, while the sum is 12.
The square root of 30300231 is about 5504.5645604353. The cubic root of 30300231 is about 311.7563535851.
Adding to 30300231 its reverse (13200303), we get a palindrome (43500534).
The spelling of 30300231 in words is "thirty million, three hundred thousand, two hundred thirty-one".
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