Base | Representation |
---|---|
bin | 111001011101… |
… | …0010100111101 |
3 | 2002200102102201 |
4 | 1302322110331 |
5 | 30202421300 |
6 | 2553351501 |
7 | 514021051 |
oct | 162722475 |
9 | 62612381 |
10 | 30123325 |
11 | 16005111 |
12 | a108591 |
13 | 631916b |
14 | 4001c61 |
15 | 29a066a |
hex | 1cba53d |
30123325 has 12 divisors (see below), whose sum is σ = 37967188. Its totient is φ = 23702400.
The previous prime is 30123281. The next prime is 30123329. The reversal of 30123325 is 52332103.
It can be written as a sum of positive squares in 6 ways, for example, as 8398404 + 21724921 = 2898^2 + 4661^2 .
It is a de Polignac number, because none of the positive numbers 2k-30123325 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30123329) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8352 + ... + 11401.
Almost surely, 230123325 is an apocalyptic number.
It is an amenable number.
30123325 is a deficient number, since it is larger than the sum of its proper divisors (7843863).
30123325 is a wasteful number, since it uses less digits than its factorization.
30123325 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19824 (or 19819 counting only the distinct ones).
The product of its (nonzero) digits is 540, while the sum is 19.
The square root of 30123325 is about 5488.4720095852. The cubic root of 30123325 is about 311.1484456565.
Adding to 30123325 its reverse (52332103), we get a palindrome (82455428).
The spelling of 30123325 in words is "thirty million, one hundred twenty-three thousand, three hundred twenty-five".
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