Base | Representation |
---|---|
bin | 11100010101011011… |
… | …001100011010001001 |
3 | 2220112022112120121220 |
4 | 130111123030122021 |
5 | 444302100040241 |
6 | 21550544352253 |
7 | 2124640420464 |
oct | 342533143211 |
9 | 86468476556 |
10 | 30424221321 |
11 | 119a275286a |
12 | 5a91015689 |
13 | 2b3b237330 |
14 | 16889162db |
15 | bd0ec4166 |
hex | 7156cc689 |
30424221321 has 16 divisors (see below), whose sum is σ = 43803203136. Its totient is φ = 18672394176.
The previous prime is 30424221307. The next prime is 30424221329. The reversal of 30424221321 is 12312242403.
It is a happy number.
It is not a de Polignac number, because 30424221321 - 222 = 30420027017 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30424221291 and 30424221300.
It is not an unprimeable number, because it can be changed into a prime (30424221329) 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 15 ways as a sum of consecutive naturals, for example, 1031175 + ... + 1060268.
It is an arithmetic number, because the mean of its divisors is an integer number (2737700196).
Almost surely, 230424221321 is an apocalyptic number.
It is an amenable number.
30424221321 is a deficient number, since it is larger than the sum of its proper divisors (13378981815).
30424221321 is a wasteful number, since it uses less digits than its factorization.
30424221321 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2091832.
The product of its (nonzero) digits is 2304, while the sum is 24.
Adding to 30424221321 its reverse (12312242403), we get a palindrome (42736463724).
The spelling of 30424221321 in words is "thirty billion, four hundred twenty-four million, two hundred twenty-one thousand, three hundred twenty-one".
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