Base | Representation |
---|---|
bin | 111001110101… |
… | …1101110110000 |
3 | 2010001201000100 |
4 | 1303223232300 |
5 | 30230410210 |
6 | 3001552400 |
7 | 515523030 |
oct | 163535660 |
9 | 63051010 |
10 | 30325680 |
11 | 16133150 |
12 | a1a5700 |
13 | 638a2b8 |
14 | 40558c0 |
15 | 29e05c0 |
hex | 1cebbb0 |
30325680 has 240 divisors, whose sum is σ = 127206144. Its totient is φ = 6289920.
The previous prime is 30325679. The next prime is 30325693. The reversal of 30325680 is 8652303.
It is a tau number, because it is divible by the number of its divisors (240).
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55167 + ... + 55713.
Almost surely, 230325680 is an apocalyptic number.
30325680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30325680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63603072).
30325680 is an abundant number, since it is smaller than the sum of its proper divisors (96880464).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30325680 is a wasteful number, since it uses less digits than its factorization.
30325680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 584 (or 575 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 27.
The square root of 30325680 is about 5506.8757022471. The cubic root of 30325680 is about 311.8436099855.
Adding to 30325680 its reverse (8652303), we get a palindrome (38977983).
The spelling of 30325680 in words is "thirty million, three hundred twenty-five thousand, six hundred eighty".
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