Base | Representation |
---|---|
bin | 11011011101001… |
… | …01010011101000 |
3 | 121001101020010002 |
4 | 31232211103220 |
5 | 432430041430 |
6 | 34504242132 |
7 | 5464435001 |
oct | 1556452350 |
9 | 531336102 |
10 | 230315240 |
11 | 109009281 |
12 | 65170348 |
13 | 3893c90c |
14 | 228341a8 |
15 | 15346845 |
hex | dba54e8 |
230315240 has 32 divisors (see below), whose sum is σ = 518676480. Its totient is φ = 92043072.
The previous prime is 230315233. The next prime is 230315243. The reversal of 230315240 is 42513032.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is not an unprimeable number, because it can be changed into a prime (230315243) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62489 + ... + 66071.
It is an arithmetic number, because the mean of its divisors is an integer number (16208640).
Almost surely, 2230315240 is an apocalyptic number.
230315240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
230315240 is an abundant number, since it is smaller than the sum of its proper divisors (288361240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230315240 is a wasteful number, since it uses less digits than its factorization.
230315240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5201 (or 5197 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 20.
The square root of 230315240 is about 15176.1404843260. The cubic root of 230315240 is about 612.9723603199.
Adding to 230315240 its reverse (42513032), we get a palindrome (272828272).
The spelling of 230315240 in words is "two hundred thirty million, three hundred fifteen thousand, two hundred forty".
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