Base | Representation |
---|---|
bin | 11100010100001010… |
… | …001111111100011111 |
3 | 2220110211121112101102 |
4 | 130110022033330133 |
5 | 444231132032033 |
6 | 21544505503315 |
7 | 2124262153133 |
oct | 342412177437 |
9 | 86424545342 |
10 | 30403002143 |
11 | 1199177a558 |
12 | 5a85aa1b3b |
13 | 2b36a17cc7 |
14 | 1685b913c3 |
15 | bce1d1de8 |
hex | 71428ff1f |
30403002143 has 2 divisors, whose sum is σ = 30403002144. Its totient is φ = 30403002142.
The previous prime is 30403002121. The next prime is 30403002151. The reversal of 30403002143 is 34120030403.
It is a strong prime.
It is an emirp because it is prime and its reverse (34120030403) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30403002143 - 210 = 30403001119 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30403002163) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15201501071 + 15201501072.
It is an arithmetic number, because the mean of its divisors is an integer number (15201501072).
Almost surely, 230403002143 is an apocalyptic number.
30403002143 is a deficient number, since it is larger than the sum of its proper divisors (1).
30403002143 is an equidigital number, since it uses as much as digits as its factorization.
30403002143 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 864, while the sum is 20.
Adding to 30403002143 its reverse (34120030403), we get a palindrome (64523032546).
The spelling of 30403002143 in words is "thirty billion, four hundred three million, two thousand, one hundred forty-three".
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