Base | Representation |
---|---|
bin | 111001011000… |
… | …1001110101001 |
3 | 2002121112022102 |
4 | 1302301032221 |
5 | 30200223212 |
6 | 2552503145 |
7 | 513504311 |
oct | 162611651 |
9 | 62545272 |
10 | 30086057 |
11 | 15a8a111 |
12 | a0aaab5 |
13 | 6305201 |
14 | 3dd2441 |
15 | 29945c2 |
hex | 1cb13a9 |
30086057 has 2 divisors, whose sum is σ = 30086058. Its totient is φ = 30086056.
The previous prime is 30086053. The next prime is 30086059. The reversal of 30086057 is 75068003.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 25969216 + 4116841 = 5096^2 + 2029^2 .
It is a cyclic number.
It is not a de Polignac number, because 30086057 - 22 = 30086053 is a prime.
Together with 30086059, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30086053) 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, 15043028 + 15043029.
It is an arithmetic number, because the mean of its divisors is an integer number (15043029).
Almost surely, 230086057 is an apocalyptic number.
It is an amenable number.
30086057 is a deficient number, since it is larger than the sum of its proper divisors (1).
30086057 is an equidigital number, since it uses as much as digits as its factorization.
30086057 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5040, while the sum is 29.
The square root of 30086057 is about 5485.0758426844. The cubic root of 30086057 is about 311.0200770736.
The spelling of 30086057 in words is "thirty million, eighty-six thousand, fifty-seven".
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