Base | Representation |
---|---|
bin | 11000111101011… |
… | …11001100011111 |
3 | 112120222211011020 |
4 | 30132233030133 |
5 | 412100243343 |
6 | 32435455223 |
7 | 5121510426 |
oct | 1436571437 |
9 | 476884136 |
10 | 209384223 |
11 | a8212514 |
12 | 5a157513 |
13 | 344c17b9 |
14 | 1db462bd |
15 | 135aeb83 |
hex | c7af31f |
209384223 has 8 divisors (see below), whose sum is σ = 295601328. Its totient is φ = 131378304.
The previous prime is 209384213. The next prime is 209384233. The reversal of 209384223 is 322483902.
It is an interprime number because it is at equal distance from previous prime (209384213) and next prime (209384233).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 209384223 - 25 = 209384191 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (209384213) 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, 2052736 + ... + 2052837.
It is an arithmetic number, because the mean of its divisors is an integer number (36950166).
Almost surely, 2209384223 is an apocalyptic number.
209384223 is a deficient number, since it is larger than the sum of its proper divisors (86217105).
209384223 is a wasteful number, since it uses less digits than its factorization.
209384223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4105593.
The product of its (nonzero) digits is 20736, while the sum is 33.
The square root of 209384223 is about 14470.1148233177. The cubic root of 209384223 is about 593.8106534087.
The spelling of 209384223 in words is "two hundred nine million, three hundred eighty-four thousand, two hundred twenty-three".
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