Base | Representation |
---|---|
bin | 11001100111000… |
… | …11111101001101 |
3 | 112222021011111001 |
4 | 30303203331031 |
5 | 414444440323 |
6 | 33152500301 |
7 | 5216065024 |
oct | 1463437515 |
9 | 488234431 |
10 | 214843213 |
11 | 100300982 |
12 | 5bb4a691 |
13 | 35683480 |
14 | 207678bb |
15 | 13cdc3ad |
hex | cce3f4d |
214843213 has 8 divisors (see below), whose sum is σ = 232030008. Its totient is φ = 197750784.
The previous prime is 214843183. The next prime is 214843217. The reversal of 214843213 is 312348412.
It can be written as a sum of positive squares in 4 ways, for example, as 16540489 + 198302724 = 4067^2 + 14082^2 .
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 214843213 - 225 = 181288781 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (214843217) 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, 18820 + ... + 27997.
It is an arithmetic number, because the mean of its divisors is an integer number (29003751).
Almost surely, 2214843213 is an apocalyptic number.
It is an amenable number.
214843213 is a deficient number, since it is larger than the sum of its proper divisors (17186795).
214843213 is a wasteful number, since it uses less digits than its factorization.
214843213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 47183.
The product of its digits is 4608, while the sum is 28.
The square root of 214843213 is about 14657.5309312312. The cubic root of 214843213 is about 598.9269831278.
The spelling of 214843213 in words is "two hundred fourteen million, eight hundred forty-three thousand, two hundred thirteen".
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