Base | Representation |
---|---|
bin | 111001111000… |
… | …0100001101101 |
3 | 2010002200221221 |
4 | 1303300201231 |
5 | 30232022300 |
6 | 3002223341 |
7 | 515634223 |
oct | 163604155 |
9 | 63080857 |
10 | 30345325 |
11 | 1614698a |
12 | a1b4b51 |
13 | 639621a |
14 | 405cb13 |
15 | 29e631a |
hex | 1cf086d |
30345325 has 12 divisors (see below), whose sum is σ = 37724148. Its totient is φ = 24214400.
The previous prime is 30345319. The next prime is 30345347. The reversal of 30345325 is 52354303.
It is a happy number.
It can be written as a sum of positive squares in 6 ways, for example, as 5004169 + 25341156 = 2237^2 + 5034^2 .
It is not a de Polignac number, because 30345325 - 23 = 30345317 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30345325.
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 11 ways as a sum of consecutive naturals, for example, 10209 + ... + 12841.
It is an arithmetic number, because the mean of its divisors is an integer number (3143679).
Almost surely, 230345325 is an apocalyptic number.
It is an amenable number.
30345325 is a deficient number, since it is larger than the sum of its proper divisors (7378823).
30345325 is a wasteful number, since it uses less digits than its factorization.
30345325 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3104 (or 3099 counting only the distinct ones).
The product of its (nonzero) digits is 5400, while the sum is 25.
The square root of 30345325 is about 5508.6590927375. The cubic root of 30345325 is about 311.9109329645.
Adding to 30345325 its reverse (52354303), we get a palindrome (82699628).
The spelling of 30345325 in words is "thirty million, three hundred forty-five thousand, three hundred twenty-five".
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