Base | Representation |
---|---|
bin | 111010011111… |
… | …1100110011011 |
3 | 2010201011020201 |
4 | 1310333212123 |
5 | 30322403321 |
6 | 3013203031 |
7 | 521453416 |
oct | 164774633 |
9 | 63634221 |
10 | 30669211 |
11 | 16348261 |
12 | a330477 |
13 | 647a781 |
14 | 4104b7d |
15 | 2a5c291 |
hex | 1d3f99b |
30669211 has 8 divisors (see below), whose sum is σ = 33397200. Its totient is φ = 28052640.
The previous prime is 30669193. The next prime is 30669227. The reversal of 30669211 is 11296603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30669211 - 29 = 30668699 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30669211.
It is not an unprimeable number, because it can be changed into a prime (30669251) 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 in 7 ways as a sum of consecutive naturals, for example, 27280 + ... + 28381.
It is an arithmetic number, because the mean of its divisors is an integer number (4174650).
Almost surely, 230669211 is an apocalyptic number.
30669211 is a deficient number, since it is larger than the sum of its proper divisors (2727989).
30669211 is a wasteful number, since it uses less digits than its factorization.
30669211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 55709.
The product of its (nonzero) digits is 1944, while the sum is 28.
The square root of 30669211 is about 5537.9789634848. The cubic root of 30669211 is about 313.0167186815.
The spelling of 30669211 in words is "thirty million, six hundred sixty-nine thousand, two hundred eleven".
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