Base | Representation |
---|---|
bin | 111010111000… |
… | …0001111000001 |
3 | 2011002021111201 |
4 | 1311300033001 |
5 | 30400242132 |
6 | 3021341201 |
7 | 523243246 |
oct | 165601701 |
9 | 64067451 |
10 | 30868417 |
11 | 16473998 |
12 | a407801 |
13 | 651a348 |
14 | 41575cd |
15 | 2a9b2e7 |
hex | 1d703c1 |
30868417 has 2 divisors, whose sum is σ = 30868418. Its totient is φ = 30868416.
The previous prime is 30868403. The next prime is 30868423. The reversal of 30868417 is 71486803.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 27468081 + 3400336 = 5241^2 + 1844^2 .
It is a cyclic number.
It is not a de Polignac number, because 30868417 - 27 = 30868289 is a prime.
It is not a weakly prime, because it can be changed into another prime (30868517) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15434208 + 15434209.
It is an arithmetic number, because the mean of its divisors is an integer number (15434209).
Almost surely, 230868417 is an apocalyptic number.
It is an amenable number.
30868417 is a deficient number, since it is larger than the sum of its proper divisors (1).
30868417 is an equidigital number, since it uses as much as digits as its factorization.
30868417 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 32256, while the sum is 37.
The square root of 30868417 is about 5555.9352947996. The cubic root of 30868417 is about 313.6929700633.
The spelling of 30868417 in words is "thirty million, eight hundred sixty-eight thousand, four hundred seventeen".
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