Base | Representation |
---|---|
bin | 111001111101… |
… | …0000101001101 |
3 | 2010011200122102 |
4 | 1303322011031 |
5 | 30234300321 |
6 | 3003124445 |
7 | 516156302 |
oct | 163720515 |
9 | 63150572 |
10 | 30384461 |
11 | 16173328 |
12 | a213725 |
13 | 63aac93 |
14 | 406d0a9 |
15 | 2a02c0b |
hex | 1cfa14d |
30384461 has 2 divisors, whose sum is σ = 30384462. Its totient is φ = 30384460.
The previous prime is 30384451. The next prime is 30384463. The reversal of 30384461 is 16448303.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 21799561 + 8584900 = 4669^2 + 2930^2 .
It is a cyclic number.
It is not a de Polignac number, because 30384461 - 26 = 30384397 is a prime.
Together with 30384463, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30384463) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15192230 + 15192231.
It is an arithmetic number, because the mean of its divisors is an integer number (15192231).
Almost surely, 230384461 is an apocalyptic number.
It is an amenable number.
30384461 is a deficient number, since it is larger than the sum of its proper divisors (1).
30384461 is an equidigital number, since it uses as much as digits as its factorization.
30384461 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 6912, while the sum is 29.
The square root of 30384461 is about 5512.2101737869. The cubic root of 30384461 is about 312.0449646186.
The spelling of 30384461 in words is "thirty million, three hundred eighty-four thousand, four hundred sixty-one".
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