Base | Representation |
---|---|
bin | 10001000000011… |
… | …000100011001110 |
3 | 201212212102011200 |
4 | 101000120203032 |
5 | 1041020010410 |
6 | 44151130330 |
7 | 10033056666 |
oct | 2100304316 |
9 | 655772150 |
10 | 285313230 |
11 | 137063064 |
12 | 7b6739a6 |
13 | 47157bc7 |
14 | 29c6d1a6 |
15 | 1a0ac3c0 |
hex | 110188ce |
285313230 has 48 divisors (see below), whose sum is σ = 743418000. Its totient is φ = 75919104.
The previous prime is 285313211. The next prime is 285313241. The reversal of 285313230 is 32313582.
It is a junction number, because it is equal to n+sod(n) for n = 285313194 and 285313203.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41734 + ... + 48086.
It is an arithmetic number, because the mean of its divisors is an integer number (15487875).
Almost surely, 2285313230 is an apocalyptic number.
285313230 is an abundant number, since it is smaller than the sum of its proper divisors (458104770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
285313230 is a wasteful number, since it uses less digits than its factorization.
285313230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6865 (or 6862 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 27.
The square root of 285313230 is about 16891.2175404854. The cubic root of 285313230 is about 658.3254380652.
The spelling of 285313230 in words is "two hundred eighty-five million, three hundred thirteen thousand, two hundred thirty".
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