Base | Representation |
---|---|
bin | 11011111100111010… |
… | …111010001110100101 |
3 | 2212110122221201010202 |
4 | 123330322322032211 |
5 | 442431323330221 |
6 | 21442101000245 |
7 | 2111516120012 |
oct | 337472721645 |
9 | 85418851122 |
10 | 30013105061 |
11 | 11801685065 |
12 | 59973b3085 |
13 | 2aa4003084 |
14 | 164a09a709 |
15 | ba9d66d0b |
hex | 6fceba3a5 |
30013105061 has 2 divisors, whose sum is σ = 30013105062. Its totient is φ = 30013105060.
The previous prime is 30013105027. The next prime is 30013105079. The reversal of 30013105061 is 16050131003.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 20676714436 + 9336390625 = 143794^2 + 96625^2 .
It is a cyclic number.
It is not a de Polignac number, because 30013105061 - 218 = 30012842917 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30013105091) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006552530 + 15006552531.
It is an arithmetic number, because the mean of its divisors is an integer number (15006552531).
Almost surely, 230013105061 is an apocalyptic number.
It is an amenable number.
30013105061 is a deficient number, since it is larger than the sum of its proper divisors (1).
30013105061 is an equidigital number, since it uses as much as digits as its factorization.
30013105061 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 270, while the sum is 20.
Adding to 30013105061 its reverse (16050131003), we get a palindrome (46063236064).
The spelling of 30013105061 in words is "thirty billion, thirteen million, one hundred five thousand, sixty-one".
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