Base | Representation |
---|---|
bin | 11011011011110… |
… | …11111000011101 |
3 | 121001001121100211 |
4 | 31231323320131 |
5 | 432404124230 |
6 | 34500452421 |
7 | 5463130216 |
oct | 1555737035 |
9 | 531047324 |
10 | 230145565 |
11 | 108a02851 |
12 | 650aa111 |
13 | 388b0610 |
14 | 227cc40d |
15 | 1531142a |
hex | db7be1d |
230145565 has 16 divisors (see below), whose sum is σ = 301190400. Its totient is φ = 167798592.
The previous prime is 230145523. The next prime is 230145583. The reversal of 230145565 is 565541032.
It is not a de Polignac number, because 230145565 - 215 = 230112797 is a prime.
It is a super-3 number, since 3×2301455653 (a number of 26 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17275 + ... + 27544.
It is an arithmetic number, because the mean of its divisors is an integer number (18824400).
Almost surely, 2230145565 is an apocalyptic number.
It is an amenable number.
230145565 is a deficient number, since it is larger than the sum of its proper divisors (71044835).
230145565 is a wasteful number, since it uses less digits than its factorization.
230145565 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44916.
The product of its (nonzero) digits is 18000, while the sum is 31.
The square root of 230145565 is about 15170.5492649409. The cubic root of 230145565 is about 612.8217961968.
Adding to 230145565 its reverse (565541032), we get a palindrome (795686597).
The spelling of 230145565 in words is "two hundred thirty million, one hundred forty-five thousand, five hundred sixty-five".
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