Base | Representation |
---|---|
bin | 11001100101111… |
… | …00001111110001 |
3 | 112221221220100220 |
4 | 30302330033301 |
5 | 414424234221 |
6 | 33145203253 |
7 | 5214516564 |
oct | 1462741761 |
9 | 487856326 |
10 | 214680561 |
11 | 1001aa757 |
12 | 5ba90529 |
13 | 35627424 |
14 | 207244db |
15 | 13ca90c6 |
hex | ccbc3f1 |
214680561 has 8 divisors (see below), whose sum is σ = 287305920. Its totient is φ = 142587792.
The previous prime is 214680559. The next prime is 214680577. The reversal of 214680561 is 165086412.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 214680561 - 21 = 214680559 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (214680511) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132205 + ... + 133818.
It is an arithmetic number, because the mean of its divisors is an integer number (35913240).
Almost surely, 2214680561 is an apocalyptic number.
It is an amenable number.
214680561 is a deficient number, since it is larger than the sum of its proper divisors (72625359).
214680561 is a wasteful number, since it uses less digits than its factorization.
214680561 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 266295.
The product of its (nonzero) digits is 11520, while the sum is 33.
The square root of 214680561 is about 14651.9814700948. The cubic root of 214680561 is about 598.7758011496.
The spelling of 214680561 in words is "two hundred fourteen million, six hundred eighty thousand, five hundred sixty-one".
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