Base | Representation |
---|---|
bin | 11100001111001110… |
… | …000000011111001001 |
3 | 2220021001121201211121 |
4 | 130033032000133021 |
5 | 444043421220241 |
6 | 21532344555241 |
7 | 2122234415566 |
oct | 341716003711 |
9 | 86231551747 |
10 | 30320101321 |
11 | 119499a7984 |
12 | 5a62182b21 |
13 | 2b227b0473 |
14 | 1678b7186d |
15 | bc6ca8ad1 |
hex | 70f3807c9 |
30320101321 has 2 divisors, whose sum is σ = 30320101322. Its totient is φ = 30320101320.
The previous prime is 30320101319. The next prime is 30320101349. The reversal of 30320101321 is 12310102303.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 19376640000 + 10943461321 = 139200^2 + 104611^2 .
It is an emirp because it is prime and its reverse (12310102303) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30320101321 - 21 = 30320101319 is a prime.
Together with 30320101319, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 30320101295 and 30320101304.
It is not a weakly prime, because it can be changed into another prime (30320101381) 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 as a sum of consecutive naturals, namely, 15160050660 + 15160050661.
It is an arithmetic number, because the mean of its divisors is an integer number (15160050661).
Almost surely, 230320101321 is an apocalyptic number.
It is an amenable number.
30320101321 is a deficient number, since it is larger than the sum of its proper divisors (1).
30320101321 is an equidigital number, since it uses as much as digits as its factorization.
30320101321 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 30320101321 its reverse (12310102303), we get a palindrome (42630203624).
The spelling of 30320101321 in words is "thirty billion, three hundred twenty million, one hundred one thousand, three hundred twenty-one".
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