Base | Representation |
---|---|
bin | 11011011100011… |
… | …00000111110111 |
3 | 121001011222121121 |
4 | 31232030013313 |
5 | 432413241322 |
6 | 34502124411 |
7 | 5463525160 |
oct | 1556140767 |
9 | 531158547 |
10 | 230212087 |
11 | 108a48826 |
12 | 65120707 |
13 | 38904991 |
14 | 22808767 |
15 | 15325ec7 |
hex | db8c1f7 |
230212087 has 8 divisors (see below), whose sum is σ = 263209856. Its totient is φ = 197241912.
The previous prime is 230212069. The next prime is 230212093. The reversal of 230212087 is 780212032.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 230212087 - 27 = 230211959 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230212387) 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, 16108 + ... + 26830.
It is an arithmetic number, because the mean of its divisors is an integer number (32901232).
Almost surely, 2230212087 is an apocalyptic number.
230212087 is a deficient number, since it is larger than the sum of its proper divisors (32997769).
230212087 is a wasteful number, since it uses less digits than its factorization.
230212087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13797.
The product of its (nonzero) digits is 1344, while the sum is 25.
The square root of 230212087 is about 15172.7415782383. The cubic root of 230212087 is about 612.8808344906.
Subtracting 230212087 from its reverse (780212032), we obtain a palindrome (549999945).
The spelling of 230212087 in words is "two hundred thirty million, two hundred twelve thousand, eighty-seven".
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