Base | Representation |
---|---|
bin | 11100001001010000… |
… | …101100101010001011 |
3 | 2220000002112100010120 |
4 | 130021100230222023 |
5 | 443342324040433 |
6 | 21514414314323 |
7 | 2116611656613 |
oct | 341120545213 |
9 | 86002470116 |
10 | 30220143243 |
11 | 118a85349a4 |
12 | 5a347b89a3 |
13 | 2b07b82a84 |
14 | 1669791a43 |
15 | bbd1117b3 |
hex | 70942ca8b |
30220143243 has 8 divisors (see below), whose sum is σ = 40354670400. Its totient is φ = 20116189128.
The previous prime is 30220143223. The next prime is 30220143251. The reversal of 30220143243 is 34234102203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30220143243 - 26 = 30220143179 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30220143223) 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, 7640953 + ... + 7644906.
It is an arithmetic number, because the mean of its divisors is an integer number (5044333800).
Almost surely, 230220143243 is an apocalyptic number.
30220143243 is a deficient number, since it is larger than the sum of its proper divisors (10134527157).
30220143243 is a wasteful number, since it uses less digits than its factorization.
30220143243 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15286521.
The product of its (nonzero) digits is 3456, while the sum is 24.
Adding to 30220143243 its reverse (34234102203), we get a palindrome (64454245446).
The spelling of 30220143243 in words is "thirty billion, two hundred twenty million, one hundred forty-three thousand, two hundred forty-three".
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