Base | Representation |
---|---|
bin | 11011011101000… |
… | …11101101110010 |
3 | 121001100220011200 |
4 | 31232203231302 |
5 | 432424334342 |
6 | 34504152030 |
7 | 5464410000 |
oct | 1556435562 |
9 | 531326150 |
10 | 230308722 |
11 | 109004396 |
12 | 65168616 |
13 | 38939967 |
14 | 22831a70 |
15 | 1534494c |
hex | dba3b72 |
230308722 has 90 divisors (see below), whose sum is σ = 590218317. Its totient is φ = 64901088.
The previous prime is 230308717. The next prime is 230308723. The reversal of 230308722 is 227803032.
It can be written as a sum of positive squares in 2 ways, for example, as 229249881 + 1058841 = 15141^2 + 1029^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=10731.
It is not an unprimeable number, because it can be changed into a prime (230308723) by changing a digit.
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 44 ways as a sum of consecutive naturals, for example, 3154878 + ... + 3154950.
Almost surely, 2230308722 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 230308722
230308722 is an abundant number, since it is smaller than the sum of its proper divisors (359909595).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230308722 is an frugal number, since it uses more digits than its factorization.
230308722 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 182 (or 85 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 27.
The square root of 230308722 is about 15175.9257378257. The cubic root of 230308722 is about 612.9665778229.
The spelling of 230308722 in words is "two hundred thirty million, three hundred eight thousand, seven hundred twenty-two".
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