Base | Representation |
---|---|
bin | 11100000110001010… |
… | …111011111110100101 |
3 | 2212212110222111121011 |
4 | 130012022323332211 |
5 | 443241041121402 |
6 | 21505323222221 |
7 | 2115412221466 |
oct | 340612737645 |
9 | 85773874534 |
10 | 30168301477 |
11 | 11881246466 |
12 | 5a1b377971 |
13 | 2aca201282 |
14 | 1662938d6d |
15 | bb87c0ed7 |
hex | 7062bbfa5 |
30168301477 has 2 divisors, whose sum is σ = 30168301478. Its totient is φ = 30168301476.
The previous prime is 30168301399. The next prime is 30168301523. The reversal of 30168301477 is 77410386103.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 15111539041 + 15056762436 = 122929^2 + 122706^2 .
It is a cyclic number.
It is not a de Polignac number, because 30168301477 - 227 = 30034083749 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30168301277) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15084150738 + 15084150739.
It is an arithmetic number, because the mean of its divisors is an integer number (15084150739).
Almost surely, 230168301477 is an apocalyptic number.
It is an amenable number.
30168301477 is a deficient number, since it is larger than the sum of its proper divisors (1).
30168301477 is an equidigital number, since it uses as much as digits as its factorization.
30168301477 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 84672, while the sum is 40.
The spelling of 30168301477 in words is "thirty billion, one hundred sixty-eight million, three hundred one thousand, four hundred seventy-seven".
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