Base | Representation |
---|---|
bin | 111001110111… |
… | …1110011101100 |
3 | 2010002112220212 |
4 | 1303233303230 |
5 | 30231424010 |
6 | 3002201552 |
7 | 515622515 |
oct | 163576354 |
9 | 63075825 |
10 | 30342380 |
11 | 16144752 |
12 | a1b32b8 |
13 | 6394a93 |
14 | 405ba0c |
15 | 29e5505 |
hex | 1cefcec |
30342380 has 24 divisors (see below), whose sum is σ = 63957600. Its totient is φ = 12091520.
The previous prime is 30342379. The next prime is 30342383. The reversal of 30342380 is 8324303.
It is not an unprimeable number, because it can be changed into a prime (30342383) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2921 + ... + 8319.
It is an arithmetic number, because the mean of its divisors is an integer number (2664900).
Almost surely, 230342380 is an apocalyptic number.
It is an amenable number.
30342380 is an abundant number, since it is smaller than the sum of its proper divisors (33615220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30342380 is a wasteful number, since it uses less digits than its factorization.
30342380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5689 (or 5687 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 23.
The square root of 30342380 is about 5508.3917798210. The cubic root of 30342380 is about 311.9008423666.
Adding to 30342380 its reverse (8324303), we get a palindrome (38666683).
The spelling of 30342380 in words is "thirty million, three hundred forty-two thousand, three hundred eighty".
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