Base | Representation |
---|---|
bin | 11011011101111… |
… | …10100100100000 |
3 | 121001120111001200 |
4 | 31232332210200 |
5 | 432441344340 |
6 | 34510401200 |
7 | 5465345460 |
oct | 1556764440 |
9 | 531514050 |
10 | 230418720 |
11 | 109079aa4 |
12 | 65200200 |
13 | 38977a4c |
14 | 2285dba0 |
15 | 15367330 |
hex | dbbe920 |
230418720 has 144 divisors (see below), whose sum is σ = 898672320. Its totient is φ = 52664832.
The previous prime is 230418679. The next prime is 230418737. The reversal of 230418720 is 27814032.
It is a tau number, because it is divible by the number of its divisors (144).
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, 1350 + ... + 21509.
It is an arithmetic number, because the mean of its divisors is an integer number (6240780).
Almost surely, 2230418720 is an apocalyptic number.
230418720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 230418720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449336160).
230418720 is an abundant number, since it is smaller than the sum of its proper divisors (668253600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230418720 is a wasteful number, since it uses less digits than its factorization.
230418720 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22887 (or 22876 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 27.
The square root of 230418720 is about 15179.5494004269. The cubic root of 230418720 is about 613.0641488362.
The spelling of 230418720 in words is "two hundred thirty million, four hundred eighteen thousand, seven hundred twenty".
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