Base | Representation |
---|---|
bin | 111001010110… |
… | …0111001100000 |
3 | 2002120121222111 |
4 | 1302230321200 |
5 | 30144141240 |
6 | 2552245104 |
7 | 513401512 |
oct | 162547140 |
9 | 62517874 |
10 | 30068320 |
11 | 15a77857 |
12 | a0a0794 |
13 | 62ca109 |
14 | 3dc9bb2 |
15 | 298e1ea |
hex | 1cace60 |
30068320 has 24 divisors (see below), whose sum is σ = 71036784. Its totient is φ = 12027264.
The previous prime is 30068281. The next prime is 30068321. The reversal of 30068320 is 2386003.
It is a junction number, because it is equal to n+sod(n) for n = 30068291 and 30068300.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30068321) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93804 + ... + 94123.
It is an arithmetic number, because the mean of its divisors is an integer number (2959866).
Almost surely, 230068320 is an apocalyptic number.
It is an amenable number.
30068320 is an abundant number, since it is smaller than the sum of its proper divisors (40968464).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30068320 is a wasteful number, since it uses less digits than its factorization.
30068320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 187942 (or 187934 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 22.
The square root of 30068320 is about 5483.4587624965. The cubic root of 30068320 is about 310.9589452394.
The spelling of 30068320 in words is "thirty million, sixty-eight thousand, three hundred twenty".
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