Base | Representation |
---|---|
bin | 111001101011… |
… | …1011101101101 |
3 | 2002220111010212 |
4 | 1303113131231 |
5 | 30220231134 |
6 | 3000112205 |
7 | 515026022 |
oct | 163273555 |
9 | 62814125 |
10 | 30242669 |
11 | 16086846 |
12 | a165665 |
13 | 635b592 |
14 | 4033549 |
15 | 29c5bce |
hex | 1cd776d |
30242669 has 2 divisors, whose sum is σ = 30242670. Its totient is φ = 30242668.
The previous prime is 30242651. The next prime is 30242689. The reversal of 30242669 is 96624203.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 19758025 + 10484644 = 4445^2 + 3238^2 .
It is a cyclic number.
It is not a de Polignac number, because 30242669 - 28 = 30242413 is a prime.
It is a super-2 number, since 2×302426692 = 1829238056487122, which contains 22 as substring.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30242629) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15121334 + 15121335.
It is an arithmetic number, because the mean of its divisors is an integer number (15121335).
Almost surely, 230242669 is an apocalyptic number.
It is an amenable number.
30242669 is a deficient number, since it is larger than the sum of its proper divisors (1).
30242669 is an equidigital number, since it uses as much as digits as its factorization.
30242669 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 15552, while the sum is 32.
The square root of 30242669 is about 5499.3335050713. Note that the first 3 decimals coincide. The cubic root of 30242669 is about 311.5588116924.
The spelling of 30242669 in words is "thirty million, two hundred forty-two thousand, six hundred sixty-nine".
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