Base | Representation |
---|---|
bin | 11100001001111011… |
… | …011000100101011011 |
3 | 2220000212120211212211 |
4 | 130021323120211123 |
5 | 443403210130321 |
6 | 21515454215551 |
7 | 2120106043462 |
oct | 341173304533 |
9 | 86025524784 |
10 | 30231333211 |
11 | 11903888102 |
12 | 5a384b45b7 |
13 | 2b0a2a0161 |
14 | 166b0659d9 |
15 | bbe0c20e1 |
hex | 709ed895b |
30231333211 has 4 divisors (see below), whose sum is σ = 30232134352. Its totient is φ = 30230532072.
The previous prime is 30231333191. The next prime is 30231333241. The reversal of 30231333211 is 11233313203.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11233313203 = 7 ⋅1604759029.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30231333211 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30231333241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341016 + ... + 420421.
It is an arithmetic number, because the mean of its divisors is an integer number (7558033588).
Almost surely, 230231333211 is an apocalyptic number.
30231333211 is a deficient number, since it is larger than the sum of its proper divisors (801141).
30231333211 is an equidigital number, since it uses as much as digits as its factorization.
30231333211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 801140.
The product of its (nonzero) digits is 972, while the sum is 22.
Adding to 30231333211 its reverse (11233313203), we get a palindrome (41464646414).
The spelling of 30231333211 in words is "thirty billion, two hundred thirty-one million, three hundred thirty-three thousand, two hundred eleven".
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