Base | Representation |
---|---|
bin | 111001010111… |
… | …1110000001001 |
3 | 2002121020000102 |
4 | 1302233300021 |
5 | 30200030014 |
6 | 2552415145 |
7 | 513450551 |
oct | 162576011 |
9 | 62536012 |
10 | 30080009 |
11 | 15a85613 |
12 | a0a74b5 |
13 | 630252b |
14 | 3dd0161 |
15 | 29928de |
hex | 1cafc09 |
30080009 has 2 divisors, whose sum is σ = 30080010. Its totient is φ = 30080008.
The previous prime is 30079999. The next prime is 30080023. The reversal of 30080009 is 90008003.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 24720784 + 5359225 = 4972^2 + 2315^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30080009 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30080069) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15040004 + 15040005.
It is an arithmetic number, because the mean of its divisors is an integer number (15040005).
Almost surely, 230080009 is an apocalyptic number.
It is an amenable number.
30080009 is a deficient number, since it is larger than the sum of its proper divisors (1).
30080009 is an equidigital number, since it uses as much as digits as its factorization.
30080009 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 216, while the sum is 20.
The square root of 30080009 is about 5484.5245008114. The cubic root of 30080009 is about 310.9992349109. Note that the first 3 decimals are identical.
The spelling of 30080009 in words is "thirty million, eighty thousand, nine".
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