Base | Representation |
---|---|
bin | 11011011111100… |
… | …10001101100000 |
3 | 121001222020012202 |
4 | 31233302031200 |
5 | 433020131430 |
6 | 34515112332 |
7 | 5500216241 |
oct | 1557621540 |
9 | 531866182 |
10 | 230630240 |
11 | 109203a05 |
12 | 652a26a8 |
13 | 38a200c9 |
14 | 228b6cc8 |
15 | 153a9d45 |
hex | dbf2360 |
230630240 has 24 divisors (see below), whose sum is σ = 544864320. Its totient is φ = 92252032.
The previous prime is 230630237. The next prime is 230630249. The reversal of 230630240 is 42036032.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230630249) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720560 + ... + 720879.
It is an arithmetic number, because the mean of its divisors is an integer number (22702680).
Almost surely, 2230630240 is an apocalyptic number.
230630240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
230630240 is an abundant number, since it is smaller than the sum of its proper divisors (314234080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230630240 is a wasteful number, since it uses less digits than its factorization.
230630240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1441454 (or 1441446 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 20.
The square root of 230630240 is about 15186.5150709437. The cubic root of 230630240 is about 613.2516852036.
Adding to 230630240 its reverse (42036032), we get a palindrome (272666272).
The spelling of 230630240 in words is "two hundred thirty million, six hundred thirty thousand, two hundred forty".
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