Base | Representation |
---|---|
bin | 111001101001… |
… | …0101011011001 |
3 | 2002212111020210 |
4 | 1303102223121 |
5 | 30214114230 |
6 | 2555441333 |
7 | 514614615 |
oct | 163225331 |
9 | 62774223 |
10 | 30223065 |
11 | 16073044 |
12 | a156249 |
13 | 6352692 |
14 | 402a345 |
15 | 29beeb0 |
hex | 1cd2ad9 |
30223065 has 16 divisors (see below), whose sum is σ = 48902400. Its totient is φ = 15937152.
The previous prime is 30223057. The next prime is 30223069. The reversal of 30223065 is 56032203.
It is not a de Polignac number, because 30223065 - 23 = 30223057 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30223069) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9985 + ... + 12654.
It is an arithmetic number, because the mean of its divisors is an integer number (3056400).
Almost surely, 230223065 is an apocalyptic number.
It is an amenable number.
30223065 is a deficient number, since it is larger than the sum of its proper divisors (18679335).
30223065 is a wasteful number, since it uses less digits than its factorization.
30223065 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22736.
The product of its (nonzero) digits is 1080, while the sum is 21.
The square root of 30223065 is about 5497.5508183190. The cubic root of 30223065 is about 311.4914772567.
Adding to 30223065 its reverse (56032203), we get a palindrome (86255268).
The spelling of 30223065 in words is "thirty million, two hundred twenty-three thousand, sixty-five".
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