Base | Representation |
---|---|
bin | 111001010110… |
… | …0010000010100 |
3 | 2002120111100212 |
4 | 1302230100110 |
5 | 30144100214 |
6 | 2552224552 |
7 | 513361025 |
oct | 162542024 |
9 | 62514325 |
10 | 30065684 |
11 | 15a75880 |
12 | a09b158 |
13 | 62c8b5c |
14 | 3dc8c4c |
15 | 298d53e |
hex | 1cac414 |
30065684 has 24 divisors (see below), whose sum is σ = 57915648. Its totient is φ = 13543040.
The previous prime is 30065683. The next prime is 30065687. The reversal of 30065684 is 48656003.
It is a self number, because there is not a number n which added to its sum of digits gives 30065684.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30065683) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1949 + ... + 7995.
It is an arithmetic number, because the mean of its divisors is an integer number (2413152).
Almost surely, 230065684 is an apocalyptic number.
It is an amenable number.
30065684 is a deficient number, since it is larger than the sum of its proper divisors (27849964).
30065684 is a wasteful number, since it uses less digits than its factorization.
30065684 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6175 (or 6173 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 32.
The square root of 30065684 is about 5483.2183979849. The cubic root of 30065684 is about 310.9498580259.
The spelling of 30065684 in words is "thirty million, sixty-five thousand, six hundred eighty-four".
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