Base | Representation |
---|---|
bin | 111001111000… |
… | …0100010000001 |
3 | 2010002200222200 |
4 | 1303300202001 |
5 | 30232022340 |
6 | 3002223413 |
7 | 515634252 |
oct | 163604201 |
9 | 63080880 |
10 | 30345345 |
11 | 161469a8 |
12 | a1b4b69 |
13 | 6396234 |
14 | 405cb29 |
15 | 29e6330 |
hex | 1cf0881 |
30345345 has 24 divisors (see below), whose sum is σ = 53117376. Its totient is φ = 16024608.
The previous prime is 30345319. The next prime is 30345347. The reversal of 30345345 is 54354303.
It is a happy number.
It is not a de Polignac number, because 30345345 - 25 = 30345313 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30345347) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1362 + ... + 7908.
It is an arithmetic number, because the mean of its divisors is an integer number (2213224).
Almost surely, 230345345 is an apocalyptic number.
It is an amenable number.
30345345 is a deficient number, since it is larger than the sum of its proper divisors (22772031).
30345345 is a wasteful number, since it uses less digits than its factorization.
30345345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6661 (or 6658 counting only the distinct ones).
The product of its (nonzero) digits is 10800, while the sum is 27.
The square root of 30345345 is about 5508.6609080611. The cubic root of 30345345 is about 311.9110014892.
Adding to 30345345 its reverse (54354303), we get a palindrome (84699648).
The spelling of 30345345 in words is "thirty million, three hundred forty-five thousand, three hundred forty-five".
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