Base | Representation |
---|---|
bin | 111010110111… |
… | …1001111100111 |
3 | 2011002001221102 |
4 | 1311233033213 |
5 | 30400124414 |
6 | 3021310315 |
7 | 523225361 |
oct | 165571747 |
9 | 64061842 |
10 | 30864359 |
11 | 16470939 |
12 | a40539b |
13 | 6518546 |
14 | 4155d31 |
15 | 2a99ede |
hex | 1d6f3e7 |
30864359 has 2 divisors, whose sum is σ = 30864360. Its totient is φ = 30864358.
The previous prime is 30864347. The next prime is 30864377. The reversal of 30864359 is 95346803.
It is a weak prime.
It is an emirp because it is prime and its reverse (95346803) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30864359 - 220 = 29815783 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30864389) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15432179 + 15432180.
It is an arithmetic number, because the mean of its divisors is an integer number (15432180).
Almost surely, 230864359 is an apocalyptic number.
30864359 is a deficient number, since it is larger than the sum of its proper divisors (1).
30864359 is an equidigital number, since it uses as much as digits as its factorization.
30864359 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 77760, while the sum is 38.
The square root of 30864359 is about 5555.5700877588. The cubic root of 30864359 is about 313.6792233065.
The spelling of 30864359 in words is "thirty million, eight hundred sixty-four thousand, three hundred fifty-nine".
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