Base | Representation |
---|---|
bin | 111001111000… |
… | …0011101110111 |
3 | 2010002200121211 |
4 | 1303300131313 |
5 | 30232020304 |
6 | 3002222251 |
7 | 515633422 |
oct | 163603567 |
9 | 63080554 |
10 | 30345079 |
11 | 16146786 |
12 | a1b4987 |
13 | 639608b |
14 | 405c9b9 |
15 | 29e6204 |
hex | 1cf0777 |
30345079 has 2 divisors, whose sum is σ = 30345080. Its totient is φ = 30345078.
The previous prime is 30345061. The next prime is 30345101. The reversal of 30345079 is 97054303.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30345079 - 215 = 30312311 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30345079.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30345179) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15172539 + 15172540.
It is an arithmetic number, because the mean of its divisors is an integer number (15172540).
Almost surely, 230345079 is an apocalyptic number.
30345079 is a deficient number, since it is larger than the sum of its proper divisors (1).
30345079 is an equidigital number, since it uses as much as digits as its factorization.
30345079 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 11340, while the sum is 31.
The square root of 30345079 is about 5508.6367642095. The cubic root of 30345079 is about 311.9100901076.
The spelling of 30345079 in words is "thirty million, three hundred forty-five thousand, seventy-nine".
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