Base | Representation |
---|---|
bin | 111001110010… |
… | …1011101111110 |
3 | 2010000101211100 |
4 | 1303211131332 |
5 | 30224100110 |
6 | 3001233530 |
7 | 515355165 |
oct | 163453576 |
9 | 63011740 |
10 | 30300030 |
11 | 16115952 |
12 | a1928a6 |
13 | 637b717 |
14 | 404a3dc |
15 | 29d7bc0 |
hex | 1ce577e |
30300030 has 24 divisors (see below), whose sum is σ = 78780312. Its totient is φ = 8079984.
The previous prime is 30299999. The next prime is 30300073. The reversal of 30300030 is 3000303.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is a junction number, because it is equal to n+sod(n) for n = 30299985 and 30300021.
It is a congruent number.
It is an unprimeable number.
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 11 ways as a sum of consecutive naturals, for example, 168244 + ... + 168423.
It is an arithmetic number, because the mean of its divisors is an integer number (3282513).
Almost surely, 230300030 is an apocalyptic number.
30300030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30300030 is an abundant number, since it is smaller than the sum of its proper divisors (48480282).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30300030 is a wasteful number, since it uses less digits than its factorization.
30300030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 336680 (or 336677 counting only the distinct ones).
The product of its (nonzero) digits is 27, while the sum is 9.
The square root of 30300030 is about 5504.5463028301. The cubic root of 30300030 is about 311.7556642266.
Adding to 30300030 its reverse (3000303), we get a palindrome (33300333).
The spelling of 30300030 in words is "thirty million, three hundred thousand, thirty".
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