Base | Representation |
---|---|
bin | 111010110110… |
… | …0010001011001 |
3 | 2011001110020112 |
4 | 1311230101121 |
5 | 30344232220 |
6 | 3021134105 |
7 | 523145030 |
oct | 165542131 |
9 | 64043215 |
10 | 30852185 |
11 | 16462781 |
12 | a3ba335 |
13 | 6512b40 |
14 | 4151717 |
15 | 2a965c5 |
hex | 1d6c459 |
30852185 has 16 divisors (see below), whose sum is σ = 45566976. Its totient is φ = 19528128.
The previous prime is 30852119. The next prime is 30852187. The reversal of 30852185 is 58125803.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 30852185 - 28 = 30851929 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30852187) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33449 + ... + 34358.
It is an arithmetic number, because the mean of its divisors is an integer number (2847936).
Almost surely, 230852185 is an apocalyptic number.
30852185 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30852185 is a deficient number, since it is larger than the sum of its proper divisors (14714791).
30852185 is a wasteful number, since it uses less digits than its factorization.
30852185 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 67832.
The product of its (nonzero) digits is 9600, while the sum is 32.
The square root of 30852185 is about 5554.4743225619. The cubic root of 30852185 is about 313.6379758053.
Adding to 30852185 its reverse (58125803), we get a palindrome (88977988).
The spelling of 30852185 in words is "thirty million, eight hundred fifty-two thousand, one hundred eighty-five".
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