Base | Representation |
---|---|
bin | 111001011000… |
… | …0111100110001 |
3 | 2002121110202001 |
4 | 1302300330301 |
5 | 30200204123 |
6 | 2552454001 |
7 | 513501055 |
oct | 162607461 |
9 | 62543661 |
10 | 30084913 |
11 | 15a89271 |
12 | a0aa301 |
13 | 6304831 |
14 | 3dd1c65 |
15 | 29940ad |
hex | 1cb0f31 |
30084913 has 2 divisors, whose sum is σ = 30084914. Its totient is φ = 30084912.
The previous prime is 30084893. The next prime is 30084941. The reversal of 30084913 is 31948003.
It is an a-pointer prime, because the next prime (30084941) can be obtained adding 30084913 to its sum of digits (28).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 29942784 + 142129 = 5472^2 + 377^2 .
It is an emirp because it is prime and its reverse (31948003) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30084913 - 29 = 30084401 is a prime.
It is not a weakly prime, because it can be changed into another prime (30084953) 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, 15042456 + 15042457.
It is an arithmetic number, because the mean of its divisors is an integer number (15042457).
Almost surely, 230084913 is an apocalyptic number.
It is an amenable number.
30084913 is a deficient number, since it is larger than the sum of its proper divisors (1).
30084913 is an equidigital number, since it uses as much as digits as its factorization.
30084913 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2592, while the sum is 28.
The square root of 30084913 is about 5484.9715587230. The cubic root of 30084913 is about 311.0161349211.
It can be divided in two parts, 3008 and 4913, that added together give a square (7921 = 892).
The spelling of 30084913 in words is "thirty million, eighty-four thousand, nine hundred thirteen".
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