Base | Representation |
---|---|
bin | 11100010110100010… |
… | …111010011110001101 |
3 | 2220120121220202121112 |
4 | 130112202322132031 |
5 | 444321403202341 |
6 | 21552455341405 |
7 | 2125256263553 |
oct | 342642723615 |
9 | 86517822545 |
10 | 30443022221 |
11 | 11a023241a7 |
12 | 5a97381865 |
13 | 2b420baa21 |
14 | 168b20bbd3 |
15 | bd2989aeb |
hex | 7168ba78d |
30443022221 has 16 divisors (see below), whose sum is σ = 32347413504. Its totient is φ = 28551446784.
The previous prime is 30443022199. The next prime is 30443022227. The reversal of 30443022221 is 12222034403.
It is a cyclic number.
It is not a de Polignac number, because 30443022221 - 210 = 30443021197 is a prime.
It is a super-3 number, since 3×304430222213 (a number of 32 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30443022227) 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 15 ways as a sum of consecutive naturals, for example, 6470756 + ... + 6475458.
It is an arithmetic number, because the mean of its divisors is an integer number (2021713344).
Almost surely, 230443022221 is an apocalyptic number.
It is an amenable number.
30443022221 is a deficient number, since it is larger than the sum of its proper divisors (1904391283).
30443022221 is a wasteful number, since it uses less digits than its factorization.
30443022221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5980.
The product of its (nonzero) digits is 2304, while the sum is 23.
Adding to 30443022221 its reverse (12222034403), we get a palindrome (42665056624).
The spelling of 30443022221 in words is "thirty billion, four hundred forty-three million, twenty-two thousand, two hundred twenty-one".
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