Base | Representation |
---|---|
bin | 11011011010111… |
… | …11110001000110 |
3 | 121000211202101200 |
4 | 31231133301012 |
5 | 432341433111 |
6 | 34454203330 |
7 | 5462140404 |
oct | 1555376106 |
9 | 530752350 |
10 | 230030406 |
11 | 108934281 |
12 | 65053546 |
13 | 38870088 |
14 | 2279c474 |
15 | 152dc256 |
hex | db5fc46 |
230030406 has 48 divisors (see below), whose sum is σ = 534160224. Its totient is φ = 71356032.
The previous prime is 230030393. The next prime is 230030483. The reversal of 230030406 is 604030032.
230030406 is a `hidden beast` number, since 230 + 0 + 30 + 406 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 7810 + ... + 22826.
It is an arithmetic number, because the mean of its divisors is an integer number (11128338).
Almost surely, 2230030406 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 230030406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267080112).
230030406 is an abundant number, since it is smaller than the sum of its proper divisors (304129818).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230030406 is a wasteful number, since it uses less digits than its factorization.
230030406 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15085 (or 15082 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
The square root of 230030406 is about 15166.7533111078. The cubic root of 230030406 is about 612.7195656523.
Adding to 230030406 its reverse (604030032), we get a palindrome (834060438).
The spelling of 230030406 in words is "two hundred thirty million, thirty thousand, four hundred six".
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