Base | Representation |
---|---|
bin | 111010001001… |
… | …0101101001000 |
3 | 2010100210222221 |
4 | 1310102231020 |
5 | 30301012240 |
6 | 3005223424 |
7 | 520056325 |
oct | 164225510 |
9 | 63323887 |
10 | 30485320 |
11 | 16232088 |
12 | a261b74 |
13 | 6414b68 |
14 | 4097b4c |
15 | 2a22a4a |
hex | 1d12b48 |
30485320 has 32 divisors (see below), whose sum is σ = 68755320. Its totient is φ = 12165120.
The previous prime is 30485317. The next prime is 30485333. The reversal of 30485320 is 2358403.
It can be written as a sum of positive squares in 4 ways, for example, as 29789764 + 695556 = 5458^2 + 834^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25864 + ... + 27016.
Almost surely, 230485320 is an apocalyptic number.
It is an amenable number.
30485320 is an abundant number, since it is smaller than the sum of its proper divisors (38270000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30485320 is a wasteful number, since it uses less digits than its factorization.
30485320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1825 (or 1821 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 25.
The square root of 30485320 is about 5521.3512838797. The cubic root of 30485320 is about 312.3898534480.
The spelling of 30485320 in words is "thirty million, four hundred eighty-five thousand, three hundred twenty".
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