Base | Representation |
---|---|
bin | 11100010101001011… |
… | …011111100001101011 |
3 | 2220112000210110112112 |
4 | 130111023133201223 |
5 | 444300021332243 |
6 | 21550320232535 |
7 | 2124560425466 |
oct | 342513374153 |
9 | 86460713475 |
10 | 30420105323 |
11 | 119a03a1413 |
12 | 5a8b76b74b |
13 | 2b3a425a2a |
14 | 16881642dd |
15 | bd095e818 |
hex | 7152df86b |
30420105323 has 2 divisors, whose sum is σ = 30420105324. Its totient is φ = 30420105322.
The previous prime is 30420105299. The next prime is 30420105329. The reversal of 30420105323 is 32350102403.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30420105323 - 214 = 30420088939 is a prime.
It is not a weakly prime, because it can be changed into another prime (30420105329) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210052661 + 15210052662.
It is an arithmetic number, because the mean of its divisors is an integer number (15210052662).
Almost surely, 230420105323 is an apocalyptic number.
30420105323 is a deficient number, since it is larger than the sum of its proper divisors (1).
30420105323 is an equidigital number, since it uses as much as digits as its factorization.
30420105323 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2160, while the sum is 23.
Adding to 30420105323 its reverse (32350102403), we get a palindrome (62770207726).
The spelling of 30420105323 in words is "thirty billion, four hundred twenty million, one hundred five thousand, three hundred twenty-three".
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